The Impact of Genetic Heritability on Intelligence: Fact or Fiction?

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The discussion centers around the heritability of intelligence and its implications for race and societal structures. Professor Jensen's research suggests that the heritability of IQ increases with age, paralleling findings in physical traits like height. Concerns are raised about how this information might be misused, particularly regarding eugenics and potential oppression of minority groups. The conversation also touches on the need for a humane approach to education and policy, emphasizing that knowledge should be integrated thoughtfully to avoid negative societal impacts. Ultimately, the dialogue highlights the complexities of addressing intelligence differences while advocating for equitable treatment across racial lines.
  • #91
Nereid said:
I wonder whether BlackVision has any relationship to Nachtwolf?
I was thinking the same thing!
 
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  • #92
I like how BV just totally ignored my post.
 
  • #93
BlackVision said:
80 years of scientific consistent scientific research is quite hard to refute. Which is why it's yet to succesfully be done.


Read what I posted about the Pioneer Fund again. And once again, where one get his research money is a weak argument. You want to refute a research, you refute it's facts, it's data, it's statistics, it's conclusions. If this is your primarily focus, there is no debate.
Hmmm, here is my opening statement "Bouchard's study is not considered to have valid scientific merit due to the lack of peer review, among other things." Bouchard's statistics, data and conclusions have all been questioned and Bouchard has failed to provide documentation (which he promised) which could validate his study.

BlackVision said:
My article on IQ heritability WAS from the Washington Post. YOU were stating that my sources were tainted.
WRONG. You really cannot read, can you? Here it is again, so you may read it. Quote:
Originally Posted by BlackVision
Source: http://www.mugu.com/cgi-bin/Upstrea...hard-twins.html

Your source is a racist/eugenics website. Super. As a matter of fact, all of your links contain publications by known racists/eugenicists and many have connections to the Pioneer Fund. Phillipe Rushton is currently president of the Pioneer Fund. If you had reading comprehension skills, you would note first that I was referring to the source of the mugu.com website and the rest of the LINKS you posted. I never referred to your post.

BlackVision said:
Right cause simply using fundamental mainstream science on a taboo subject makes it racist. All scientists I'm sure will agree that Siamese cats are the smartest cat. Perhaps these scientists are cat racists against other cats too aye.
Getting silly now?

BlackVision said:
It couldn't simply have to do with using science or finding the truth huh. The fact remains, concluding 2 groups above your own DOES NOT make one a racist.
I never said it did. It's all the other facts that make them racists.

BlackVision said:
So the only way that someone isn't racist is if they perfectly agree with you on racial matters? Oh that's just great. Forget science. Forget research. Let's just create happy answers to live in our oh so delusional politically correct world where feelings have become more important than the pursuit of truth, the pursuit of science.
It is about the science, and VALID research, not the skewed and biased "studies" that you post.

Would you like the facts about the study that concluded that whites and Asians had larger brain sizes? Oh please ask me to post it.
 
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  • #94
Evo said:
Hmmm, here is my opening statement "Bouchard's study is not considered to have valid scientific merit due to the lack of peer review, among other things." Bouchard's statistics, data and conclusions have all been questioned and Bouchard has failed to provide documentation (which he promised) which could validate his study.
Again 80 years of research by psychologists. This isn't one study. These are hundreds of studies done for the past 80 years. Ever since IQ tests have been invented. Quit singling out one single person.

Evo said:
WRONG. You really cannot read, can you? Here it is again, so you may read it. Quote:
Originally Posted by BlackVision
Source: http://www.mugu.com/cgi-bin/Upstrea...hard-twins.html
Wow YOU can't read can you? Let me repost my first source.

"These statistics have shown that on average, identical twins tend to be around 80 percent the same in everything from stature to health to IQ to political views. The similarities are partly the product of similar upbringing. But evidence from the comparison of twins raised apart points rather convincingly to genes as the source of a lot of that likeness."

"identical twins are roughly 85 percent similar for IQ, fraternal twins about 60 percent."

Source: http://www.washingtonpost.com/wp-sr...wins/twins2.htm

Your source is a racist/eugenics website. Super. As a matter of fact, all of your links contain publications by known racists/eugenicists and many have connections to the Pioneer Fund. Phillipe Rushton is currently president of the Pioneer Fund. If you had reading comprehension skills, you would note first that I was referring to the source of the mugu.com website and the rest of the LINKS you posted. I never referred to your post.
And these sites make it racist? How? Cause it doesn't agree with your illogical state of mind? But want me to post the article from "Wall Street Journal" Here. I'd like to you try and attempt and say Wall Street Journal is racist.

Mainstream Science on Intelligence
The Wall Street Journal
December 13, 1994

Since the publication of "The Bell Curve," many commentators have offered
opinions about human intelligence that misstate current scientific evidence.
Some conclusions dismissed in the media as discredited are actually firmly
supported.

This statement outlines conclusions regarded as mainstream among researchers
on intelligence, in particular, on the nature, origins, and practical
consequences of individual and group differences in intelligence. Its aim is
to promote more reasoned discussion of the vexing phenomenon that the
research has revealed in recent decades. The following conclusions are fully
described in the major textbooks, professional journals and encyclopedias in
intelligence.

The Meaning and Measurement of Intelligence

1. Intelligence is a very general mental capability that, among other
things, involves the ability to reason, plan, solve problems, think
abstractly, comprehend complex ideas, learn quickly and learn from
experience. It is not merely book learning, a narrow academic skill, or
test-taking smarts. Rather, it reflects a broader and deeper capability
for comprehending our surroundings--"catching on," "making sense" of
things, or "figuring out" what to do.

2. Intelligence, so defined, can be measured, and intelligence tests
measure it well. They are among the most accurate (in technical terms,
reliable and valid) of all psychological tests and assessments. They do
not measure creativity, character personality, or other important
differences among individuals, nor are they intended to.

3. While there are different types of intelligence tests, they all measure
the same intelligence. Some use words or numbers and require specific
cultural knowledge (like vocabulary). Others do not, and instead use
shapes or designs and require knowledge of only simple, universal
concepts (many/few, open/closed, up/down).

4. The spread of people along the IQ continuum, from low to high, can be
represented well by the bell curve (in statistical jargon, the "normal
curve"). Most people cluster around the average (IQ 100). Few are
either very bright or very dull: About 3% of Americans score above IQ
130 (often considered the threshold for "giftedness"), with about the
same percentage below IQ 70 (IQ 70-75 often being considered the
threshold for mental retardation).

5. Intelligence tests are not culturally biased against American blacks or
other native-born, English-speaking peoples in the U.S. Rather, IQ
scores predict equally accurately for all such Americans, regardless of
race and social class. Individuals who do not understand English well
can be given either a nonverbal test or one in their native language.

6. The brain processes underlying intelligence are still little
understood. Current research looks, for example, at speed of neural
transmission, glucose (energy) uptake, and electrical activity of the
brain, uptake, and electrical activity of the brain.

Group Differences

7. Members of all racial-ethnic groups can be found at every IQ level. The
bell curves of different groups overlap considerably, but groups often
differ in where their members tend to cluster along the IQ line. The
bell curves for some groups (Jews and East Asians) are centered
somewhat higher than for whites in general. Other groups (blacks and
Hispanics) ale centered somewhat lower than non-Hispanic whites.

8. The bell curve for whites is centered roughly around IQ 100; the bell
curve for American blacks roughly around 85; and those for different
subgroups of Hispanics roughly midway between those for whites and
blacks. The evidence is less definitive for exactly where above IQ 100
the bell curves for Jews and Asians are centered.

Getting silly now?
No I would say you are.

I never said it did. It's all the other facts that make them racists.
Point out these "facts" No more Pioneer Fund either.

It is about the science, and VALID research, not the skewed and biased "studies" that you post.
Alright if you're honestly about the science, let's try this with a open mind. Would you be willing to accept that thousands of years of evolution in various locations in the world, has allowed slight differences in various abilities of both mental and physical characteristics of the human races. I'm not exactly referring to IQ or the Bell Curve, but would you be willing to conclude that some variation exists in between races in both physical and mental characteristics.

Would you like the facts about the study that concluded that whites and Asians had larger brain sizes? Oh please ask me to post it.
Post if you wish.
 
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  • #95
Concept said:
I like how BV just totally ignored my post.
Would you like to me to copy and paste my previous responses?

The world purpose of an IQ test is be culturally unbias. It's by definition suppose to measure natural intelligence. If it was bias toward higher education, toward a culture, that would defeat the whole purpose of IQ test now wouldn't it? And would be considered invalid by all psychologists. Since psychologists and geneticists alike seem overwhelmingly in support of such tests, the validity of such tests are strongly upheld.

Especially matrices IQ test. Let me show you what a matrix IQ test looks like.

http://nicologic.free.fr/MatrixA.htm

You honestly think education would have any major impact on your ability to take this test?
 
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  • #96
Concept said:
how do these statements not make sense?

and studies do consistently show that changes in enviorment with the specific intent to improve ones conditions can raise IQ.

http://www.biomedcentral.com/news/20040303/01
Ok would you like to point out where in this article it even mentions IQ?

Power law governs gene expression
Proportional dynamics illustrates commonality of gene expression levels in all organisms | By Cathy Holding



With an ever-increasing number of genomes available for analysis, there has been a shift in emphasis away from the study of single genes and a greater attempt to understand gene expression at the network or systems level. A report in the March 1 PNAS shows that power laws—a universal mathematical dynamic—govern the process.

Hiroki Ueda and colleagues at the Center for Developmental Biology describe the mathematical principle underlying observed levels of gene expression. They used information from public databases of whole genome sequences and from their own microarray analyses. Proportional dynamics, also known as “rich-travel-more,” showed that power law levels of gene expression were observed not only in different organisms, but also within discrete organs or at specific developmental times in the same organism (PNAS, DOI:10.1073/pnas.0306244101, March 1, 2004).

The team examined how genes change their expression in different conditions and observed that highly expressed genes change more, while genes expressed infrequently change less. “It's proportional; the magnitude of change are proportional to their expression levels,” said Ueda. “I also found [that] proportional dynamics can reproduce the complex pattern of distribution in gene expression levels—called power law distribution.”

Ueda said he was surprised to find Escherichia coli and humans are governed by the same simple mechanism. “I am glad to have found a simple and universal mechanism that exists in all systems of life,” he told The Scientist.

Plotting the distribution of different gene expression levels against the expression hierarchy of those genes results in a straight line. “I unexpectedly found that distribution of gene expression were heterogeneous and governed by the power law of minus 2 exponent,” he told The Scientist in an E-mail.

Yutaka Suzuki, research scientist at the Institute of Medical Science Human Genome Center explained, “In every case, you can see the straight line in the scattering plot. The basic concept is that such a kind of law is conserved between cell types and organisms in many kinds of context.”

Suzuki, who was not involved in the study, explained that it is the ratio of minus 2 that is conserved. “That's the universal observation, that's the point of this manuscript,” he said.

Lada Adamic, a power law expert in the Information Dynamics Laboratory at Hewlett-Packard, told The Scientist that although she was not a biologist, she would almost expect this observation because these distributions are extremely common. “As long as you have like a multiplicative process—which is what this is, this proportional process—you're going to end up with a distribution like that,” she said.

Adamic, who was not involved in the study, said that the same distribution was actually observed by Yule in 1913 when he was looking at the abundance of species in different genera. “So that's kind of like a biological thing,” she said. “The problem with power laws is that people keep kind of rediscovering them.”

“I myself have heard that this behavior of a system is very universal, [but] this is the first groundwork for this kind of analysis as I believe it. For biological systems, this is a first, so in that sense at least I think this is significant,” Suzuki said.

Ueda said that in the future, statistical analysis utilizing this “proportional” dynamics would be useful for the analysis of microarray data in any organism. “Statistical analysis based on “proportional” dynamics can be applied to the search for the significantly changed genes in two conditions,” he said in an E-mail. “We are preparing the manuscript on this type of application.”
 
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  • #97
BlackVision said:
Again 80 years of research by psychologists. This isn't one study. These are hundreds of studies done for the past 80 years. Ever since IQ tests have been invented. Quit singling out one single person.
You were the one that posted Bouchard as an impeccable source, not me. I was responding to your piece on him. Why do you keep bringing up other things you have posted that I did not respond to?

BlackVision said:
Wow YOU can't read can you? Let me repost my first source.

"These statistics have shown that on average, identical twins tend to be around 80 percent the same in everything from stature to health to IQ to political views. The similarities are partly the product of similar upbringing. But evidence from the comparison of twins raised apart points rather convincingly to genes as the source of a lot of that likeness."

"identical twins are roughly 85 percent similar for IQ, fraternal twins about 60 percent."

Source: http://www.washingtonpost.com/wp-sr...wins/twins2.htm [/QUOTE'You are a DIM bulb. I did not post anything concerning this. If you say that it rains daily in the Sahara, and I reply saying "no, that's not correct", why would you then keep saying "but it snows in Iceland". I'm not discussing Iceland, I'm discussing the Sahara. Understand?

BlackVision said:
And these sites make it racist? How? Cause it doesn't agree with your illogical state of mind? But want me to post the article from "Wall Street Journal" Here. I'd like to you try and attempt and say Wall Street Journal is racist.
What are you rambling about? You think something is true just because of where something is repeated? Are you really that naive?

Evo said:
I never said it did. It's all the other facts that make them racists.
BlackVision said:
Point out these "facts" No more Pioneer Fund either.
I will gladly point them out. I will do so later tonight when I have a bit more time. Sorry, the Pioneer Fund is closely tied to and in many cases responsible for the studies you hold as the truth. There is no way to exclude them.

BlackVision said:
Alright if you're honestly about the science, let's try this with a open mind. Would you be willing to accept that thousands of years of evolution in various locations in the world, has allowed slight differences in various abilities of both mental and physical characteristics of the human races. I'm not exactly referring to IQ or the Bell Curve, but would you be willing to conclude that some variation exists in between races in both physical and mental characteristics.
I agree that there are physical differences caused by climate, nutrition, etc... I do not agree that there are mental differences.

BlackVision said:
Post if you wish.
The study are you referring to that shows that Asians have larger size brains than Africans is the unscientific, biased & debunked study by Rushton, that won't fly.

Funny that the reason the African brain size was significantly smaller was due to the grossly disproportionate sampling of PYGMIES.

"This paper
contains the geographical means widely cited by Rushton, namely
that the mean cranial volume for 26 Asian societies was 1380 cc,
the mean volume for 10 European societies was 1362, and the mean
for 10 African societies was 1276. Notably, the African sample
contained 5 groups that are characterized by exceptionally small
body size (2 pygmy groups and 2 bushman groups). Indeed the Akka
pygmies (representing 1/10 of the whole African sample) had the
smallest cranial volume ever found in extant humans (1085 cc)."

http://www.anatomy.usyd.edu.au/dann...-1994/0088.html

All of you eugenicists have this tiny database of skewed information that you draw from. Do you have any idea how many times everything you have posted has previously been posted here and debunked?
 
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  • #98
BlackVision said:
Would you like to me to copy and paste my previous responses?

The world purpose of an IQ test is be culturally unbias. It's by definition suppose to measure natural intelligence. If it was bias toward higher education, toward a culture, that would defeat the whole purpose of IQ test now wouldn't it? And would be considered invalid by all psychologists. Since psychologists and geneticists alike seem overwhelmingly in support of such tests, the validity of such tests are strongly upheld.

Especially matrices IQ test. Let me show you what a matrix IQ test looks like.

http://nicologic.free.fr/MatrixA.htm

You honestly think education would have any major impact on your ability to take this test?
then how exactly do you explain studies that consistently show that improving education and improving conditions increases IQ? Second of all, no one says IQ tests measure nothing. They were invented to indentify children who needed extra help, the person who created them specifically warned against an inherentist interpetation of the results. Third of all, implying the majority of psychologists agree that IQ is inherent is simply false. The existence of g is highly debatable, because it is merely one mathematical interpetation of IQ test results.

also, I posted the article because it talks about how enviornment influences gene expression. Thinking it doesn't influence IQ is a huge assumption.
 
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  • #99
Evo said:
You were the one that posted Bouchard as an impeccable source, not me. I was responding to your piece on him. Why do you keep bringing up other things you have posted that I did not respond to?
Cause YOU are the one fixating on him. Trying to remove credibility of 80 years of psychology research from one person. Do you think there aren't hundreds of others that did their own researches that didn't draw the same conclusion as he did? Again, what is your fixation with him?

What are you rambling about? You think something is true just because of where something is repeated? Are you really that naive?
Washington Post and Wall Street Journal are by no measures a racist propaganda news source. Nor would they ever attempt to advocate any racism. For them to run the stories, does show credibility.

I will gladly point them out. I will do so later tonight when I have a bit more time. Sorry, the Pioneer Fund is closely tied to and in many cases responsible for the studies you hold as the truth. There is no way to exclude them.
Perhaps focusing on refuting statistics and datas rather than where the money trail goes. Even if Hitler himself donated $10 million to fund the project, that itself certainly doesn't discredit any findings now does it.

I agree that there are physical differences caused by climate, nutrition, etc... I do not agree that there are mental differences.
See this is where PC mentality fails you and clouds your ability to use proper science. What makes you think nature is bias toward physical differences but doesn't lay a figure on mental attributes. Are you also going to state there are no mental differences between one group of cats and other? One group of birds and another? One group of dogs and another? One group of fish and another?

Since when does mother nature ignore mental attributes. Since when does mental attributes become completely distanced from evolution. How does thousands of years of evolution not create even a single shred of mental differences? You may have to learn the basics of evolution first before we attempt to discuss this further.

http://www.anatomy.usyd.edu.au/dann...-1994/0088.html
Can you fix this link? It doesn't seem to work.

Do you have any idea how many times everything you have posted has previously been posted here and debunked?
Debunked? Really? Hmm. So nobody here shares the same viewpoint I have? Why do I find that hard to believe.
 
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  • #100
Concept said:
then how exactly do you explain studies that consistently show that improving education and improving conditions increases IQ? Second of all, no one says IQ tests measure nothing. They were invented to indentify children who needed extra help, the person who created them specifically warned against an inherentist interpetation of the results. Third of all, implying the majority of psychologists agree that IQ is inherent is simply false. The existence of g is highly debatable, because it is merely one mathematical interpetation of IQ test results.
IQ tests are approximately 70-80% genetic. I'm quite sure no one will say that it's completely genetic. That being said, better environments will have slight improvements in IQ. But by no means can someone jump from an IQ of 100 to an IQ of 130 regardless of environment. No environment in the world will give someone Einstein like IQ level. Genetics is the predominating factor.

also, I posted the article because it talks about how enviornment influences gene expression. Thinking it doesn't influence IQ is a huge assumption.
Well perhaps you need to find an article that directly relates to IQ. That would have far more weight.
 
  • #101
BlackVision said:
Cause YOU are the one fixating on him. Trying to remove credibility of 80 years of psychology research from one person. Do you think there aren't hundreds of others that did their own researches that didn't draw the same conclusion as he did? Again, what is your fixation with him?
I'm not fixated, *you* are the one that keeps bringing him up and refuses to move on.

BlackVision said:
Can you fix this link? It doesn't seem to work.
Sorry, here it is. http://www.anatomy.usyd.edu.au/danny/anthropology/anthro-l/archive/november-1994/0088.html

BlackVision said:
Debunked? Really? Hmm. So nobody here shares the same viewpoint I have? Why do I find that hard to believe.
Yes, really. There is you, Nachtwolf & hitssquad.

I will respond to your other items when I return. Or maybe it would be better to just give you the other threads that already go over all of this in boring repetitive detail.
 
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  • #102
BlackVision said:
IQ tests are approximately 70-80% genetic.
Really? Please post the studies done that have proven this, I've somehow missed them in all my research on the subject.
 
  • #103
BlackVision said:
IQ tests are approximately 70-80% genetic. I'm quite sure no one will say that it's completely genetic. That being said, better environments will have slight improvements in IQ. But by no means can someone jump from an IQ of 100 to an IQ of 130 regardless of environment. No environment in the world will give someone Einstein like IQ level. Genetics is the predominating factor.
one of the sites YOU posted cites a study that says blacks adopted by white families don't show real IQ difference.

of course everybody has limits. Not everyone can be Einstein. People like that are extreme cases.
 
  • #104
Evo said:
I'm not fixated, *you* are the one that keeps bringing him up and refuses to move on.
What the hell are you talking about? You're the one constantly trying to discredit 80 years of consistent psychology research by pointing out the "supposed" flaws of one guy.

Sorry, here it is. http://www.anatomy.usyd.edu.au/danny/anthropology/anthro-l/archive/november-1994/0088.html
This is your best source? Could of at least attempted to find a reliable source with doctors and bibliographical notes. What is this?

Also note that I never even brought up brain size so not sure why you brought it up. We were discussing IQ weren't we?

Yes, really. There is you, Nachtwolf & hitssquad.
How long have you been here? I'd been here for like a week and I'd read more support than just those 2. Simply naming the two most vocal ones doesn't mean those are the only ones.

The Bell Curve also has been widely accepted in the psychology world. Are there vocal opposers? Of course. For such a taboo subject it's expected. But it certainly has a wide area of support. Including black professors and academics.

I will respond to your other items when I return. Or maybe it would be better to just give you the other threads that already go over all of this in boring repetitive detail.
You think you've debated this a lot? You have any idea how much I have? You and I both know how it'll end up.
 
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  • #105
Evo said:
Really? Please post the studies done that have proven this, I've somehow missed them in all my research on the subject.
Seeing how there's probably well over 50,000 sources that will give you the 70% and 80% figures, I would say that it's quite substantiated. Did your bias just have a tendency to simply skip over each and every single one of them in your so called "researches"?
 
  • #106
Concept said:
one of the sites YOU posted cites a study that says blacks adopted by white families don't show real IQ difference.
Such studies have shown slight IQ improvements but nothing drastic.
 
  • #107
PubMed citations for TJ Bouchard

Evo said:
Bouchard's study is not considered to have valid scientific merit due to the lack of peer review, among other things.
PubMed returns 47 citations for bouchard+tj+twin:


  • 1: Johnson W, McGue M, Krueger RF, Bouchard TJ Jr.
    Marriage and personality: a genetic analysis.
    J Pers Soc Psychol. 2004 Feb;86(2):285-94.
    PMID: 14769084 [PubMed - in process]
    2: Krueger RF, Markon KE, Bouchard TJ Jr.
    The extended genotype: the heritability of personality accounts for the heritability of recalled family environments in twins reared apart.
    J Pers. 2003 Oct;71(5):809-33.
    PMID: 12932211
    3: Bouchard TJ Jr, McGue M.
    Genetic and environmental influences on human psychological differences.
    J Neurobiol. 2003 Jan;54(1):4-45. Review.
    PMID: 12486697
    4: Markon KE, Krueger RF, Bouchard TJ Jr, Gottesman II.
    Normal and abnormal personality traits: evidence for genetic and environmental relationships in the Minnesota Study of Twins Reared Apart.
    J Pers. 2002 Oct;70(5):661-93.
    PMID: 12322856
    5: Johnson W, Krueger RF, Bouchard TJ Jr, McGue M.
    The personalities of twins: just ordinary folks.
    Twin Res. 2002 Apr;5(2):125-31.
    PMID: 11931690
    6: Bouchard TJ Jr, Loehlin JC.
    Genes, evolution, and personality.
    Behav Genet. 2001 May;31(3):243-73. Review.
    PMID: 11699599
    7: Michalowicz BS, Pihlstrom BL, Hodges JS, Bouchard TJ Jr.
    No heritability of temporomandibular joint signs and symptoms.
    J Dent Res. 2000 Aug;79(8):1573-8.
    PMID: 11023277
    8: DiLalla DL, Gottesman II, Carey G, Bouchard TJ Jr.
    Heritability of MMPI Harris-Lingoes and Subtle-Obvious subscales in twins reared apart.
    Assessment. 1999 Dec;6(4):353-66.
    PMID: 10539982
    9: Bouchard TJ Jr, McGue M, Lykken D, Tellegen A.
    Intrinsic and extrinsic religiousness: genetic and environmental influences and personality correlates.
    Twin Res. 1999 Jun;2(2):88-98.
    PMID: 10480743
    10: Michalowicz BS, Wolff LF, Klump D, Hinrichs JE, Aeppli DM, Bouchard TJ Jr, Pihlstrom BL.
    Periodontal bacteria in adult twins.
    J Periodontol. 1999 Mar;70(3):263-73.
    PMID: 10225542
    11: Hur YM, Bouchard TJ Jr, Eckert E.
    Genetic and environmental influences on self-reported diet: a reared-apart twin study.
    Physiol Behav. 1998 Jul;64(5):629-36.
    PMID: 9817574
    12: Ziegler DK, Hur YM, Bouchard TJ Jr, Hassanein RS, Barter R.
    Migraine in twins raised together and apart.
    Headache. 1998 Jun;38(6):417-22.
    PMID: 9664744
    13: Newman DL, Tellegen A, Bouchard TJ Jr.
    Individual differences in adult ego development: sources of influence in twins reared apart.
    J Pers Soc Psychol. 1998 Apr;74(4):985-95.
    PMID: 9569654
    14: Bouchard TJ Jr.
    Genetic and environmental influences on adult intelligence and special mental abilities.
    Hum Biol. 1998 Apr;70(2):257-79. Review.
    PMID: 9549239
    15: McGue M, Bouchard TJ Jr.
    Genetic and environmental influences on human behavioral differences.
    Annu Rev Neurosci. 1998;21:1-24. Review.
    PMID: 9530489
    16: Bouchard TJ Jr, Hur YM.
    Genetic and environmental influences on the continuous scales of the Myers-Briggs Type Indicator: an analysis based on twins reared apart.
    J Pers. 1998 Apr;66(2):135-49.
    PMID: 9529660
    17: Hur YM, Bouchard TJ Jr.
    The genetic correlation between impulsivity and sensation seeking traits.
    Behav Genet. 1997 Sep;27(5):455-63.
    PMID: 9336082
    18: Bouchard TJ Jr.
    Experience Producing Drive Theory: how genes drive experience and shape personality.
    Acta Paediatr Suppl. 1997 Jul;422:60-4. Review.
    PMID: 9298795
    19: Fox PW, Hershberger SL, Bouchard TJ Jr.
    Genetic and environmental contributions to the acquisition of a motor skill.
    Nature. 1996 Nov 28;384(6607):356-8.
    PMID: 8934520
    20: DiLalla DL, Carey G, Gottesman II, Bouchard TJ Jr.
    Heritability of MMPI personality indicators of psychopathology in twins reared apart.
    J Abnorm Psychol. 1996 Nov;105(4):491-9.
    PMID: 8952182
    21: Hur YM, Bouchard TJ Jr.
    Genetic influences on perceptions of childhood family environment: a reared apart twin study.
    Child Dev. 1995 Apr;66(2):330-45.
    PMID: 7750369
    22: Bouchard TJ Jr.
    Genes, environment, and personality.
    Science. 1994 Jun 17;264(5166):1700-1. Review. No abstract available.
    PMID: 8209250
    23: Conry JP, Messer LB, Boraas JC, Aeppli DP, Bouchard TJ Jr.
    Dental caries and treatment characteristics in human twins reared apart.
    Arch Oral Biol. 1993 Nov;38(11):937-43.
    PMID: 8297257
    24: Lykken DT, Bouchard TJ Jr, McGue M, Tellegen A.
    Heritability of interests: a twin study.
    J Appl Psychol. 1993 Aug;78(4):649-61.
    PMID: 8407707
    25: Segal NL, Bouchard TJ Jr.
    Grief intensity following the loss of a twin and other relatives: test of kinship genetic hypotheses.
    Hum Biol. 1993 Feb;65(1):87-105. Erratum in: Hum Biol 1993 Apr;65(2):following 336.
    PMID: 8436394
    26: Lykken DT, McGue M, Tellegen A, Bouchard TJ Jr.
    Emergenesis. Genetic traits that may not run in families.
    Am Psychol. 1992 Dec;47(12):1565-77.
    PMID: 1476327
    27: Michalowicz BS, Aeppli DP, Kuba RK, Bereuter JE, Conry JP, Segal NL, Bouchard TJ Jr, Pihlstrom BL.
    A twin study of genetic variation in proportional radiographic alveolar bone height.
    J Dent Res. 1991 Nov;70(11):1431-5.
    PMID: 1960253
    28: Michalowicz BS, Aeppli D, Virag JG, Klump DG, Hinrichs JE, Segal NL, Bouchard TJ Jr, Pihlstrom BL.
    Periodontal findings in adult twins.
    J Periodontol. 1991 May;62(5):293-9.
    PMID: 2072240
    29: Hanson B, McGue M, Roitman-Johnson B, Segal NL, Bouchard TJ Jr, Blumenthal MN.
    Atopic disease and immunoglobulin E in twins reared apart and together.
    Am J Hum Genet. 1991 May;48(5):873-9.
    PMID: 2018039
    30: Bouchard TJ, Lykken DT, McGue M, Segal N, Tellegen A.
    When kin correlations are not squared.
    Science. 1990 Dec 14;250(4987):1498. No abstract available.
    PMID: 2274774
    31: Bouchard TJ Jr, Lykken DT, McGue M, Segal NL, Tellegen A.
    Sources of human psychological differences: the Minnesota Study of Twins Reared Apart.
    Science. 1990 Oct 12;250(4978):223-8.
    PMID: 2218526
    32: Lykken DT, McGue M, Bouchard TJ Jr, Tellegen A.
    Does contact lead to similarity or similarity to contact?
    Behav Genet. 1990 Sep;20(5):547-61.
    PMID: 2288545
    33: Grove WM, Eckert ED, Heston L, Bouchard TJ Jr, Segal N, Lykken DT.
    Heritability of substance abuse and antisocial behavior: a study of monozygotic twins reared apart.
    Biol Psychiatry. 1990 Jun 15;27(12):1293-304.
    PMID: 2364118
    34: Lykken DT, Bouchard TJ Jr, McGue M, Tellegen A.
    The Minnesota Twin Family Registry: some initial findings.
    Acta Genet Med Gemellol (Roma). 1990;39(1):35-70.
    PMID: 2392892
    35: Bouchard TJ Jr, Segal NL, Lykken DT.
    Genetic and environmental influences on special mental abilities in a sample of twins reared apart.
    Acta Genet Med Gemellol (Roma). 1990;39(2):193-206.
    PMID: 2239105
    36: Tellegen A, Lykken DT, Bouchard TJ Jr, Wilcox KJ, Segal NL, Rich S.
    Personality similarity in twins reared apart and together.
    J Pers Soc Psychol. 1988 Jun;54(6):1031-9.
    PMID: 3397862
    37: Lykken DT, Iacono WG, Haroian K, McGue M, Bouchard TJ Jr.
    Habituation of the skin conductance response to strong stimuli: a twin study.
    Psychophysiology. 1988 Jan;25(1):4-15. No abstract available.
    PMID: 3353484
    38: Eckert ED, Bouchard TJ, Bohlen J, Heston LL.
    Homosexuality in monozygotic twins reared apart.
    Br J Psychiatry. 1986 Apr;148:421-5.
    PMID: 3730708
    39: Kohler PF, Rivera VJ, Eckert ED, Bouchard TJ Jr, Heston LL.
    Genetic regulation of immunoglobulin and specific antibody levels in twins reared apart.
    J Clin Invest. 1985 Mar;75(3):883-8.
    PMID: 4038983
    40: Knobloch WH, Leavenworth NM, Bouchard TJ, Eckert ED.
    Eye findings in twins reared apart.
    Ophthalmic Paediatr Genet. 1985 Feb;5(1-2):59-66.
    PMID: 4058873
    41: McGue M, Bouchard TJ Jr.
    Adjustment of twin data for the effects of age and sex.
    Behav Genet. 1984 Jul;14(4):325-43. No abstract available.
    PMID: 6542356
    42: Segal NL, Bouchard TJ Jr.
    Zygosity diagnosis of twins in medical research.
    Arch Intern Med. 1984 Jul;144(7):1505, 1509. No abstract available.
    PMID: 6539582
    43: Hanson BR, Halberg F, Tuna N, Bouchard TJ Jr, Lykken DT, Cornelissen G, Heston LL.
    Rhythmometry reveals heritability of circadian characteristics of heart rate of human twins reared apart.
    Cardiologia. 1984 May-Jun;29(5-6):267-82. No abstract available.
    PMID: 6542411
    44: Bouchard TJ Jr, McGue M.
    Familial studies of intelligence: a review.
    Science. 1981 May 29;212(4498):1055-9.
    PMID: 7195071
    45: Bouchard TJ Jr, Heston L, Eckert E, Keyes M, Resnick S.
    The Minnesota study of twins reared apart: project description and sample results in the developmental domain.
    Prog Clin Biol Res. 1981;69 Pt B:227-33. No abstract available.
    PMID: 7199166
    46: Bouchard TJ Jr.
    The study of mental ability using twin and adoption designs.
    Prog Clin Biol Res. 1981;69 Pt B:21-3. No abstract available.
    PMID: 7199164
    47: Eckert ED, Heston LL, Bouchard TJ Jr.
    MZ twins reared apart: preliminary findings of psychiatric disturbances and traits.
    Prog Clin Biol Res. 1981;69 Pt B:179-88. No abstract available.
    PMID: 7199161
 
  • #108
OVID PsycINFO citations for TJ Bouchard

Evo said:
Bouchard's study is not considered to have valid scientific merit due to the lack of peer review
OVID PsycINFO returns 54 citations for (bouchard t j or bouchard thomas j or bouchard thomas j jr).au. and (twin or twins).mp:
  • 1. Johnson, Wendy; McGue, Matt; Krueger, Robert F; Bouchard, Thomas J. Jr. Marriage and Personality: A Genetic Analysis. Journal of Personality & Social Psychology. Vol 86(2) Feb 2004, 285-294. American Psychological Assn, US

    • •
    2. Bouchard, Thomas J. Jr. The genetics of personality. Blum, Kenneth (Ed); Noble, Ernest P. (Ed); et al. (1997). Handbook of psychiatric genetics. (pp. 273-296). Boca Raton, FL, US: CRC Press. 498pp.

    • •
    3. Bouchard, Thomas J; Lykken, David T; McGue, Matthew; Segal, Nancy L; et al. "Sources of human psychological differences: The Minnesota Study of Twins Reared Apart": Response. Science. Vol 252(5003) Apr 1991, 191-192. American Assn for the Advancement of Science, US

    • •
    4. Krueger, Robert F; Markon, Kristian E; Bouchard, Thomas J. Jr. The Extended Genotype: The Heritability of Personality Accounts for the Heritability of Recalled Family Environments in Twins Reared Apart. Journal of Personality. Vol 71(5) Oct 2003, 809-833. Blackwell Publishing, United Kingdom

    • •
    5. Bouchard, Thomas J. Jr; Segal, Nancy L; Tellegen, Auke; McGue, Matt; Keyes, Margaret; Krueger, Robert. Evidence for the construct validity and heritability of the Wilson-Patterson Conservatism Scale: A reared-apart twins study of social attitudes. Personality & Individual Differences. Vol 34(6) Apr 2003, 959-969. Elsevier Science, United Kingdom

    • •
    6. Johnson, Wendy; Bouchard, Thomas J. JR; Segal, Nancy L; Keyes, Margaret; Samuels, Jay. The Stroop Color-Word Test: Genetic and environmental influences; Reading, mental ability, and personality correlates. Journal of Educational Psychology. Vol 95(1) Mar 2003, 58-65. American Psychological Assn, US

    • •
    7. Markon, Kristian E; Krueger, Robert F; Bouchard, Thomas J. JR; Gottesman, Irving I. Normal and abnormal personality traits: Evidence for genetic and environmental relationships in the Minnesota Study of Twins Reared Apart. Journal of Personality. Vol 70(5) Oct 2002, 661-693. Blackwell Publishers, US

    • •
    8. DiLalla, David L; Gottesman, Irving I; Carey, Gregory; Bouchard, Thomas J. Jr. Heritability of MMPI Harris-Lingoes and Subtle-Obvious subscales in twins reared apart. Assessment. Vol 6(4) Dec 1999, 353-366. Psychological Assessment Resources Inc, US

    • •
    9. Bouchard, Thomas J. Genes, environment, and personality. Ceci, Stephen J. (Ed); Williams, Wendy M. (Ed). (1999). The nature--nurture debate: The essential readings. Essential readings in developmental psychology. (pp. 97-103). xi, 294pp.

    • •
    10. McCourt, Kathryn; Bouchard, Thomas J. Jr; Lykken, David T; Tellegen, Auke; Keyes, Margaret. Authoritarianism revisited: Genetic and environmental influences examined in twins reared apart and together. Personality & Individual Differences. Vol 27(5) Nov 1999, 985-1014. Elsevier Science, England

    • •
    11. Bouchard, Thomas J. Jr; Pedersen, Nancy. Twins reared apart: Nature's double experiment. LaBuda, Michele C. (Ed); Grigorenko, Elena L. (Ed). (1999). On the way to individuality: Current methodological issues in behavioral genetics. (pp. 71-93). xi, 252pp.

    • •
    12. McGue, Matt; Bouchard, Thomas J. Jr. Genetic and environmental influences on human behavioral differences. Annual Review of Neuroscience. Vol 21 1998, 1-24. Annual Reviews, US

    • •
    13. Hur, Yoon-Mi; Bouchard, Thomas J. Jr; Eckert, Elke. Genetic and environmental influences on self-reported diet: A reared-apart twin study. Physiology & Behavior. Vol 64(5) Jul 1998, 629-636. Elsevier Science, US

    • •
    14. Bouchard, Thomas J. Jr; McGue, Matt; Hur, Yoon-Mi; Horn, Joseph M. A genetic and environmental analysis of the California Psychological Inventory using adult twins reared apart and together. European Journal of Personality. Vol 12(5) Sep-Oct 1998, 307-320. John Wiley & Sons, US

    • •
    15. Hur, Yoon-Mi; Bouchard, Thomas J. Jr; Lykken, David T. Genetic and environmental influence on morningness-eveningness. Personality & Individual Differences. Vol 25(5) Nov 1998, 917-925. Elsevier Science, England

    • •
    16. Bouchard, Thomas J. Jr; Hur, Yoon-Mi. Genetic and environmental influences on the continuous scales of the Myers-Briggs Type Indicator: An analysis based on twins reared apart. Journal of Personality. Vol 66(2) Apr 1998, 135-149. Blackwell Publishers, US

    • •
    17. Newman, Denise L; Tellegen, Auke; Bouchard, Thomas J. Jr. Individual differences in adult ego development: Sources of influence in twins reared apart. Journal of Personality & Social Psychology. Vol 74(4) Apr 1998, 985-995. American Psychological Assn, US

    • •
    18. Bouchard, Thomas J. Jr. IQ similarity in twins reared apart: Findings and responses to critics. Sternberg, Robert J. (Ed); Grigorenko, Elena L. (Ed). (1997). Intelligence, heredity, and environment. (pp. 126-160). xvii, 608pp.

    • •
    19. Hur, Yoon-Mi; Bouchard, Thomas J. Jr. The genetic correlation between impulsivity and sensation seeking traits. Behavior Genetics. Vol 27(5) Sep 1997, 455-463. Kluwer Academic/Plenum Publishers, US

    • •
    20. Bouchard, Thomas J. Jr. The genetics of personality. Blum, Kenneth (Ed); Noble, Ernest P. (Ed); et al. (1997). Handbook of psychiatric genetics. (pp. 273-296). 498pp.

    • •
    21. DiLalla, David L; Carey, Gregory; Gottesman, Irving I; Bouchard, Thomas J. Jr. Heritability of MMPI personality indicators of psychopathology in twins reared apart. Journal of Abnormal Psychology. Vol 105(4) Nov 1996, 491-499. American Psychological Assn, US

    • •
    22. Bouchard, Thomas J. Jr; Lykken, David T; Tellegen, Auke; McGue, Matthew. Genes, drives, environment, and experience: EPD theory revised. Benbow, Camilla Persson (Ed); Lubinski, David John (Ed). (1996). Intellectual talent: Psychometric and social issues. (pp. 5-43). xii, 428pp.

    • •
    23. Segal, Nancy L; Wilson, Steven M; Bouchard, Thomas J; Gitlin, Dinah G. Comparative grief experiences of bereaved twins and other bereaved relatives. Personality & Individual Differences. Vol 18(4) Apr 1995, 511-524. Elsevier Science, England

    • •
    24. Hur, Yoon-Mi; Bouchard, Thomas J. Genetic influences on perceptions of childhood family environment: A reared apart twin study. Child Development. Vol 66(2) Apr 1995, 330-345. Blackwell Publishers, US

    • •
    25. Arvey, Richard D; McCall, Brian P; Bouchard, Thomas J; Taubman, Paul; et al. Genetic influences on job satisfaction and work value. Personality & Individual Differences. Vol 17(1) Jul 1994, 21-33. Elsevier Science, England

    • •
    26. Bouchard, Thomas J. Genes, environment, and personality. Science. Vol 264(5166) Jun 1994, 1700-1701. American Assn for the Advancement of Science, US

    • •
    27. Betsworth, Deborah G; Bouchard, Thomas J; Cooper, Catherine R; Grotevant, Harold D; et al. Genetic and environmental influences on vocational interests assessed using adoptive and biological families and twins reared apart and together. Journal of Vocational Behavior. Vol 44(3) Jun 1994, 263-278. Elsevier Science, US

    • •
    28. Baker, L. A; Asendorpf, J; Bishop, D; Boomsma, D. I; Bouchard, Thomas J. Jr; Brand, C. R; Fulker, D. W; Gardner, H; Kinsbourne, M; et al. Group report: Intelligence and its inheritance--A diversity of views. Bouchard, Thomas J. Jr. (Ed); Propping, Peter (Ed). (1993). Twins as a tool of behavioral genetics. Life sciences research report, 53. (pp. 85-108). xvi, 310pp.

    • •
    29. Bouchard, Thomas J. Jr; Propping, Peter. Twins: Nature's twice-told tale. Bouchard, Thomas J. Jr. (Ed); Propping, Peter (Ed). (1993). Twins as a tool of behavioral genetics. Life sciences research report, 53. (pp. 1-15). xvi, 310pp.

    • •
    30. Bouchard, Thomas J. Jr. (Ed); Propping, Peter (Ed). Twins as a tool of behavioral genetics. (1993). xvi, 310pp.

    • •
    Book Series Title
    Life sciences research report, 53.
    31. Waller, Niels G; Bouchard, Thomas J; Lykken, David T; Tellegen, Auke; et al. Creativity, heritability, familiality: Which word does not belong? Psychological Inquiry. Vol 4(3) 1993, 235-237. Lawrence Erlbaum, US

    • •
    32. McGue, Matt; Bouchard, Thomas J. Jr; Iacono, William G; Lykken, David T. Behavioral genetics of cognitive ability: A life-span perspective. Plomin, Robert (Ed); McClearn, Gerald E. (Ed). (1993). Nature, nurture & psychology. (pp. 59-76). xvi, 498pp.

    • •
    33. Lykken, David T; Bouchard, T. J; McGue, M; Tellegen, Auke. Heritability of interests: A twin study. Journal of Applied Psychology. Vol 78(4) Aug 1993, 649-661. American Psychological Assn, US

    • •
    34. Lykken, David T; McGue, Matt; Tellegen, A; Bouchard, T. J. Emergenesis: Genetic traits that may not run in families. American Psychologist. Vol 47(12) Dec 1992, 1565-1577. American Psychological Assn, US

    • •
    35. Keller, Lauren M; Bouchard, Thomas J; Arvey, Richard D; Segal, Nancy L; et al. Work values: Genetic and environmental influences. Journal of Applied Psychology. Vol 77(1) Feb 1992, 79-88. American Psychological Assn, US

    • •
    36. Bouchard, Thomas J; Arvey, Richard D; Keller, Lauren M; Segal, Nancy L. Genetic influences on job satisfaction: A reply to Cropanzano and James. Journal of Applied Psychology. Vol 77(1) Feb 1992, 89-93. American Psychological Assn, US
 
  • #109
OVID PsycINFO citations for TJ Bouchard (cont.)

  • 37. Bouchard, Thomas J. Jr. A twice-told tale: Twins reared apart. Cicchetti, Dante (Ed); Grove, William M. (Ed). (1991). Thinking clearly about psychology: Essays in honor of Paul E. Meehl, Vol. 1: Matters of public interest; Vol. 2: Personality and psychopathology. (pp. 188-215). xxiii, 744pp.

    • •
    38. Segal, Nancy L; Grove, William M; Bouchard, Thomas J. Jr. Psychiatric investigations and findings from the Minnesota Study of Twins Reared Apart. Tsuang, Ming T. (Ed); Kendler, Kenneth S. (Ed); et al. (1991). Genetic issues in psychosocial epidemiology. Series in psychosocial epidemiology, Vol. 8. (pp. 247-266). xvi, 280pp.

    • •
    39. Moloney, Daniel P; Bouchard, Thomas J; Segal, Nancy L. A genetic and environmental analysis of the vocational interests of monozygotic and dizygotic twins reared apart. Journal of Vocational Behavior. Vol 39(1) Aug 1991, 76-109. Elsevier Science, US

    • •
    40. Bouchard, Thomas J; Lykken, David T; McGue, Matthew; Segal, Nancy L; et al. "Sources of human psychological differences: The Minnesota Study of Twins Reared Apart": Response. Science. Vol 252(5003) Apr 1991, 191-192. American Assn for the Advancement of Science, US

    • •
    41. Bouchard, Thomas J; Lykken, David T; McGue, Matthew; Segal, Nancy L; et al. Sources of human psychological differences: The Minnesota Study of Twins Reared Apart. Science. Vol 250(4978) Oct 1990, 223-228. American Assn for the Advancement of Science, US

    • •
    42. Lykken, David T; McGue, Matt; Bouchard, T. J; Tellegen, A. Does contact lead to similarity or similarity to contact? Behavior Genetics. Vol 20(5) Sep 1990, 547-561. Kluwer Academic/Plenum Publishers, US

    • •
    43. Bouchard, Thomas J; Segal, N. L; Lykken, D. T. Genetic and environmental influences on special mental abilities in a sample of twins reared apart. Acta Geneticae Medicae et Gemellologiae. Vol 39(2) 1990, 193-206. Associazione Instituto de Genetica Medica e Gemellologia Gregorio Mendel, Italy

    • •
    44. Grove, William M; Eckert, Elke D; Heston, Leonard; Bouchard, Thomas J; et al. Heritability of substance abuse and antisocial behavior: A study of monozygotic twins reared apart. Biological Psychiatry. Vol 27(12) Jun 1990, 1293-1304. Elsevier Science, US

    • •
    45. Bouchard, Thomas J; McGue, Matthew. Genetic and rearing environmental influences on adult personality: An analysis of adopted twins reared apart. Journal of Personality. Vol 58(1) Mar 1990, 263-292. Blackwell Publishers, US

    • •
    46. Waller, Niels G; Kojetin, Brian A; Bouchard, Thomas J; Lykken, David T; et al. Genetic and environmental influences on religious interests, attitudes, and values: A study of twins reared apart and together. Psychological Science. Vol 1(2) Mar 1990, 138-142. Blackwell Publishers, US

    • •
    47. Segal, Nancy L; Dysken, Maurice W; Bouchard, Thomas J; Pedersen, Nancy L; et al. Tourette's disorder in a set of reared-apart triplets: Genetic and environmental influences. American Journal of Psychiatry. Vol 147(2) Feb 1990, 196-199. American Psychiatric Assn, US

    • •
    48. McGue, Matt; Bouchard, Thomas J. Jr. Genetic and environmental determinants of information processing and special mental abilities: A twin analysis. Sternberg, Robert J. (Ed). (1989). Advances in the psychology of human intelligence, Vol. 5. (pp. 7-45). x, 236pp.

    • •
    49. Arvey, Richard D; Bouchard, Thomas J; Segal, Nancy L; Abraham, Lauren M. Job satisfaction: Environmental and genetic components. Journal of Applied Psychology. Vol 74(2) Apr 1989, 187-192. American Psychological Assn, US

    • •
    50. Tellegen, Auke; Lykken, David T; Bouchard, Thomas J; Wilcox, Kimerly J; et al. Personality similarity in twins reared apart and together. Journal of Personality & Social Psychology. Vol 54(6) Jun 1988, 1031-1039. American Psychological Assn, US

    • •
    51. Eckert, Elke D; Bouchard, Thomas J; Bohlen, Joseph; Heston, Leonard L. Homosexuality in monozygotic twins reared apart. British Journal of Psychiatry. Vol 148 Apr 1986, 421-425. Royal Coll of Psychiatrists, England

    • •
    52. McGue, Matt; Bouchard, Thomas J; Lykken, David T; Feuer, Dale. Information processing abilities in twins reared apart. Intelligence. Vol 8(3) Jul-Sep 1984, 239-258. Elsevier/JAI Press Inc, US

    • •
    53. McGue, Matt; Bouchard, Thomas J. Adjustment of twin data for the effects of age and sex. Behavior Genetics. Vol 14(4) Jul 1984, 325-343. Kluwer Academic/Plenum Publishers, US

    • •
    54. Bouchard, Thomas J. Do environmental similarities explain the similarity in intelligence of identical twins reared apart? Intelligence. Vol 7(2) Apr-Jun 1983, 175-184. Elsevier/JAI Press Inc, US
 
  • #110
hitssquad said:
OVID PsycINFO returns 54 citations for (bouchard t j or bouchard thomas j or bouchard thomas j jr).au. and (twin or twins).mp:
  • 1. Johnson, Wendy; McGue, Matt; Krueger, Robert F; Bouchard, Thomas J. Jr. Marriage and Personality: A Genetic Analysis. Journal of Personality & Social Psychology. Vol 86(2) Feb 2004, 285-294. American Psychological Assn, US[\QUOTE]

    hitssquad, this is meaningless, this isn't peer review of the study. This is just a listing of articles where Bouchard was mentioned.

    "And yet, Bouchard's twin studies, which are now in their second decade, have still NEVER been published in a scholarly journal or monograph, nor have they been subjected to peer review by other researchers, nor have other scientists replicated them. Although Bouchard promised to publish a full-length study by 1987, he has failed to do so. (Mehler 1997) Since then he has refused to let any other researcher examine the case histories he claims to have studied."


    "Bouchard's group promised a book length study a decade ago, but it never appeared. The Human Genome Issue of Science published a review article by Bouchard covering research that Science's peer reviewers had earlier rejected."

    http://csf.colorado.edu/mail/matfem/current/msg00173.html
 
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  • #111
Bouchard's Minnesota Study of Twins Reared Apart

Evo said:
hitssquad said:
OVID PsycINFO returns 54 citations for (bouchard t j or bouchard thomas j or bouchard thomas j jr).au. and (twin or twins).mp:
  • 1. Johnson, Wendy; McGue, Matt; Krueger, Robert F; Bouchard, Thomas J. Jr. Marriage and Personality: A Genetic Analysis. Journal of Personality & Social Psychology. Vol 86(2) Feb 2004, 285-294. American Psychological Assn, US
  • hitssquad, this is meaningless, this isn't peer review of the study. This is just a listing of articles where Bouchard was mentioned.
  • None of these are articles mentioning Bouchard (except where he refers to his own publications). Every one of these citations lists Bouchard as an author. In OVID PsycINFO, .au means author. In PubMed, any letter string followed by exactly one or two letters is parsed as author.

    All of these publications mention twins. Some of these publications are reviews of twin studies in general or summaries of Bouchard's own findings. Some of these publications are replies to comments. The rest of these publications are of initial findings or of methods and findings from Bouchard's Minnesota Study of Twins Reared Apart.




    "And yet, Bouchard's twin studies, which are now in their second decade, have still NEVER been published in a scholarly journal or monograph, nor have they been subjected to peer review by other researchers, nor have other scientists replicated them. Although Bouchard promised to publish a full-length study by 1987, he has failed to do so. (Mehler 1997) Since then he has refused to let any other researcher examine the case histories he claims to have studied."

    "Bouchard's group promised a book length study a decade ago, but it never appeared. The Human Genome Issue of Science published a review article by Bouchard covering research that Science's peer reviewers had earlier rejected."
    http://csf.colorado.edu/mail/matfem/current/msg00173.html
    The Human Genome Issue of Science was dated 16 February 2001 Volume 291 Number 5507. Bouchard published his complete article on his twin study, Sources of human psychological differences: the Minnesota Study of Twins Reared Apart, in the Oct 12, 1990 issue of Science. You can read the PDF of that article http://www.jstor.org/browse/00368075/di002138/00p0025p/0 (click DOWNLOAD[/color]). Since then more findings have been published by Bouchard in peer-reviewed journals. His latest article on his findings from his twin study is Marriage and Personality: A Genetic Analysis, published in the Journal of Personality & Social Psychology, Vol 86(2) Feb 2004.
 
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  • #112
hitssquad said:
None of these are articles mentioning Bouchard (except where he refers to his own publications). Every one of these citations lists Bouchard as an author. In OVID PsycINFO, .au means author. In PubMed, any letter string followed by exactly one or two letters is parsed as author.
Being an "author" doesn't mean didly squat.

hitssquad said:
All of these publications mention twins. Some of these publications are reviews of twin studies in general or summaries of Bouchard's own findings. Some of these publications are replies to comments. The rest of these publications are of initial findings or of methods and findings from Bouchard's Minnesota Study of Twins Reared Apart in the Oct 12, 1990 issue of Science. You can read the PDF of that article here (click DOWNLOAD). Since then more findings have been published by Bouchard in peer-reviewed journals. His latest article on his findings from his twin study is Marriage and Personality: A Genetic Analysis, published in the Journal of Personality & Social Psychology, Vol 86(2) Feb 2004.
Meaningless again. I don't care that he had an article published. Having snippets of articles posted here & there doesn't validate his research. As I posted, he has published a LOT of stuff, none of it validated. Show me the findings of other legitimate researchers that have examined the case histories he claims to have studied and have validated Bouchard's "eerie anecdotes" as they're jokingly referred to.

Don't forget the fraudulent twin studies done by Sir Cyril Burt used by Jensen and others to base theories of hereditary racial IQ differences. What an embarrassment that was!

I have found nothing that validates Bouchard's so called research.
 
  • #113
Has Bouchard's twins work been peer-reviewed

Evo said:
hitssquad said:
Sources of human psychological differences: the Minnesota Study of Twins Reared Apart, in the Oct 12, 1990 issue of Science. You can read the PDF of that article http://www.jstor.org/browse/00368075/di002138/00p0025p/0:


  • Research Articles (up to ~4500 words or ~5 journal pages) are expected to present a major advance. Research Articles include an abstract, an introduction, up to 6 figures or tables, sections with brief subheadings, and a maximum of 40 references. Materials and Methods should usually be included in supporting online material, which should also include information needed to support the paper's conclusions.

Bouchard's October 1990 Science Magazine article was six pages, so it qualifies under Science Magazine's guidelines as a Research Article since that is the longest manuscript type Science Magazine accepts save for Reviews.



Further on, Science's guidelines say:


  • Most submitted papers are rated for suitability by members of Science's Board of Reviewing Editors. The editors at Science consider this advice in selecting papers for in-depth review; priority is given to papers that reveal novel concepts of broad interest. Authors of papers that are not highly rated are notified promptly, within about 1 to 2 weeks. Authors are notified of decisions by e-mail only. Membership in AAAS is not a factor in selection of manuscripts for publication.

    Papers are reviewed in depth by two or more outside referees. It is the policy of Science that reviewers are anonymous. Reviewers are contacted before being sent a paper and asked to return comments within 1 week to 10 days for most papers. We are able to expedite the review process significantly for papers that require rapid assessment. Selected papers are edited to improve accuracy and clarity and to shorten, if necessary. Papers cannot be resubmitted over a disagreement on interest or relative merit. If a paper was rejected on the basis of serious reviewer error, resubmission will be considered.



    Conditions of Acceptance
    When a paper is accepted for publication in Science, it is understood that:

  • Any reasonable request for materials, methods, or data necessary to verify the conclusions of the experiments reported must be honored.

  • Authors agree to disclose all affiliations, funding sources, and financial or management relationships that could be perceived as potential sources of bias, as defined by Science's conflict of interest policy.



Additionally, correspondence regarding Bouchard's 1990 Science Magazine article took place within the pages of Science Magazine between Bouchard and respondents to the article. Potential faults were pointed out and Bouchard responded to those criticisms. Correspondence also took place within the pages of the Journal of Applied Psychology regarding another publication of findings from the twin study published there. And finally, response to criticism was published in Sternberg's 1997 Intelligence, heredity, and environment.


  • 3. Bouchard, Thomas J; Lykken, David T; McGue, Matthew; Segal, Nancy L; et al. "Sources of human psychological differences: The Minnesota Study of Twins Reared Apart": Response. Science. Vol 252(5003) Apr 1991, 191-192. American Assn for the Advancement of Science, US
    AN: Peer Reviewed Journal: 1991-27358-001.
    • •
    Responds to criticism by R. M. Dudley (see record 1991-27363-001) and J. Beckwith et al (see record 1991-27352-001) of studies by T. J. Bouchard et al (see record 1991-21275-001). In response to Dudley, it is argued that the heritability of IQ in the reported sample could be high, and the correlation between co-twin differences and a feature of the environment could also be high. Beckwith et al's complaint that the similarities between monozygotic twins reared apart might be explained by unreported environmental similarities is considered highly unlikely.

  • 18. Bouchard, Thomas J. Jr. IQ similarity in twins reared apart: Findings and responses to critics. Sternberg, Robert J. (Ed); Grigorenko, Elena L. (Ed). (1997). Intelligence, heredity, and environment. (pp. 126-160). xvii, 608pp.
    AN: Chapter: 1997-97582-005.
    • •
    (from the chapter) Bouchard considers the findings of his and others' twin studies and also critiques of these studies. Bouchard concludes that there is no plausible alternative to genetic influence for explaining the similarities in IQ in monozygotic twins reared apart. Bouchard notes that results from these studies are consistent with the results of other kinds of behavior-genetic studies, such as of adult kinships, and also concludes that genetics predominates over environment in the transmission of human intelligence, at least in modern Western societies.

  • 36. Bouchard, Thomas J; Arvey, Richard D; Keller, Lauren M; Segal, Nancy L. Genetic influences on job satisfaction: A reply to Cropanzano and James. Journal of Applied Psychology. Vol 77(1) Feb 1992, 89-93. American Psychological Assn, US
    AN: Journal Article: 1992-18811-001.
    • •
    Responds to the points made by R. Cropanzano and K. James (see record 1991-00462-001) concerning the article by R. D. Arvey et al (1989). The authors acknowledge that the Arvey et al study is based on a single design, makes use of a small and special sample, and, as such, is vulnerable to threats of internal and external validity. Nevertheless, after providing a more comprehensive conceptual and empirical context for the study, and after reviewing a number of the issues raised by Cropanzano and James, the authors conclude that it is not premature to accept the idea that work attitudes are partially genetically influenced. Indeed, the authors use behavioral genetic theory, together with data gathered in the Arvey et al study, to make specific point predictions regarding the outcomes of an array of studies that easily can be undertaken. Finally, the authors acknowledge that the comments and issues raised by Cropanzano and James, along with the interchange, can offer directions for future research in this important area.

  • Dudley, Richard M. "Sources of human psychological differences: The Minnesota Study of Twins Reared Apart": Comment. Science. Vol 252(5003) Apr 1991, 191. American Assn for the Advancement of Science, US
    AN: Peer Reviewed Journal: 1991-27363-001.
    • •
    Criticizes the use of IQ score correlation of monozygotic twins reared apart as an estimate of IQ heritability in the population at large as reported by T. J. Bouchard et al (see record 1991-21275-001). It is argued that Bouchard et al erroneously assumed no environmental similarity for co-twins.

  • Beckwith, Jonathan; Geller, Lisa; Sarkar, Sahotra. "Sources of human psychological differences: The Minnesota Study of Twins Reared Apart": Comment. Science. Vol 252(5003) Apr 1991, 191. American Assn for the Advancement of Science, US
    AN: Journal Article: 1991-27352-001.
    • •
    Criticizes the claim of T. J. Bouchard et al (see record 1991-21275-001) that several psychological traits are highly heritable and therefore genetic in origin. It is argued that some of their data have not been published in a format that permits independent scrutiny. Bouchard et al also fail to cite articles containing case studies of the impact of environment on twins.
 
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  • #114
Mainstream Science on Intelligence - advert in the WSJ

BlackVision said:
"identical twins are roughly 85 percent similar for IQ, fraternal twins about 60 percent."
Source: http://www.washingtonpost.com/wp-sr...wins/twins2.htm

want me to post the article from "Wall Street Journal" Here. I'd like to you try and attempt and say Wall Street Journal is racist.

Mainstream Science on Intelligence
The Wall Street Journal
December 13, 1994
The first item you referenced above, BlackVision, is a January 11, 1998 article published in the Washington Post. The second item you referenced, "http://home.comcast.net/~neoeugenics/wsj.htm," is a December 13, 1994 advertisement taken out in the Wall Street Journal. While the first item is genuinely an article, the second is merely a collective position statement. Being a paid advertisement, it does not necessarily represent the views of the Wall Street Journal, its owners, its staff, its editors, or its patrons. Calling it an "article from 'Wall Street Journal'" is a stretch.
 
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  • #115
hitssquad said:
Conditions of Acceptance
When a paper is accepted for publication in Science, it is understood that:

[*]Any reasonable request for materials, methods, or data necessary to verify the conclusions of the experiments reported must be honored.
Ok, I will accept this as a peer reviewed article. Based on this Bouchard was discredited. He refused to adhere to conditions listed above. Bouchard has refused to allow anyone access to any of the above.

hitssquad said:
[*]Authors agree to disclose all affiliations, funding sources, and financial or management relationships that could be perceived as potential sources of bias, as defined by Science's conflict of interest policy.[/list]
And we know about the Pioneer Fund paying for this.

hitssquad said:
Additionally, correspondence regarding Bouchard's 1990 Science Magazine article took place within the pages of Science Magazine between Bouchard and respondents to the article. Potential faults were pointed out and Bouchard responded to those criticisms.
LOL. Yes he responded by saying he was "right", but failed to provide any information that answered any of the questions or would prove he was right.

Here are a couple of examples. I don't even see responses from Bouchard on the last couple of entries disputing Bouchard's validity.

hitssquad said:
[*]18. Bouchard, Thomas J. Jr. IQ similarity in twins reared apart: Findings and responses to critics. Sternberg, Robert J. (Ed); Grigorenko, Elena L. (Ed). (1997). Intelligence, heredity, and environment. (pp. 126-160). xvii, 608pp.
AN: Chapter: 1997-97582-005.

• •

(from the chapter) Bouchard considers the findings of his and others' twin studies and also critiques of these studies. Bouchard concludes that there is no plausible alternative to genetic influence for explaining the similarities in IQ in monozygotic twins reared apart. Bouchard notes that results from these studies are consistent with the results of other kinds of behavior-genetic studies, such as of adult kinships, and also concludes that genetics predominates over environment in the transmission of human intelligence, at least in modern Western societies.
See, this is exactly what I am talking about. He offers no proof. This is meaningless.


hitssquad said:
[*]Dudley, Richard M. "Sources of human psychological differences: The Minnesota Study of Twins Reared Apart": Comment. Science. Vol 252(5003) Apr 1991, 191. American Assn for the Advancement of Science, US
AN: Peer Reviewed Journal: 1991-27363-001.

• •

Criticizes the use of IQ score correlation of monozygotic twins reared apart as an estimate of IQ heritability in the population at large as reported by T. J. Bouchard et al (see record 1991-21275-001). It is argued that Bouchard et al erroneously assumed no environmental similarity for co-twins.

[*]Beckwith, Jonathan; Geller, Lisa; Sarkar, Sahotra. "Sources of human psychological differences: The Minnesota Study of Twins Reared Apart": Comment. Science. Vol 252(5003) Apr 1991, 191. American Assn for the Advancement of Science, US
AN: Journal Article: 1991-27352-001.

• •

Criticizes the claim of T. J. Bouchard et al (see record 1991-21275-001) that several psychological traits are highly heritable and therefore genetic in origin. It is argued that some of their data have not been published in a format that permits independent scrutiny. Bouchard et al also fail to cite articles containing case studies of the impact of environment on twins.[/list]

hitssquad, you are awesome when it comes to finding information. :smile:

Have you been able to find where Bouchard allowed other researchers access to his data and they concurred that his study was vaild?
 
  • #116
BlackVision said:
What the hell are you talking about? You're the one constantly trying to discredit 80 years of consistent psychology research by pointing out the "supposed" flaws of one guy.
You used Bouchard as your source, I showed he was wrong. You have yet to show me that I am wrong. So, either show me the studies done by other researchers that Bouchard allowed access to his data and proved his study to be sound, or stop beating a dead horse.

BlackVision said:
This is your best source? Could of at least attempted to find a reliable source with doctors and bibliographical notes. What is this?

Also note that I never even brought up brain size so not sure why you brought it up. We were discussing IQ weren't we??
This is the information from the actual research that was used by Rushton for that debunked study *you* cited stating Asians and whites had higher IQ's. You don't know about the supposed correlation of brain size to IQ? It's all part of the same argument.

BlackVision said:
How long have you been here? I'd been here for like a week and I'd read more support than just those 2. Simply naming the two most vocal ones doesn't mean those are the only ones.
I am not aware of any others that once they were presented with additional information continued with the debate. I have a lot of respect for hitssquad. He and I obviously see things differently, but he backs up his arguments with facts. Usually not facts I agree with, but he's a tough adversary, something you are not.

BlackVision said:
You think you've debated this a lot? You have any idea how much I have? You and I both know how it'll end up.
Yes, I will win because when you are presented with information that debunks something you have stated, you are consistently incapable of responding with valid new information to support your position.
 
  • #117
BlackVision said:
Seeing how there's probably well over 50,000 sources that will give you the 70% and 80% figures, I would say that it's quite substantiated. Did your bias just have a tendency to simply skip over each and every single one of them in your so called "researches"?
Well, you should have no problem posting a few of those studies here as I previously requested, which you have failed to do.

BlackVision, you will find that when you start making things up like your above statement "there's probably well over 50,000 sources that will give you the 70% and 80% figures" you will immediately lose your credibility here.
 
  • #118
Evo said:
You used Bouchard as your source, I showed he was wrong. You have yet to show me that I am wrong. So, either show me the studies done by other researchers that Bouchard allowed access to his data and proved his study to be sound, or stop beating a dead horse.
Did you even READ all the articles I posted? Obviously not. First read them, and then come back.

This is the information from the actual research that was used by Rushton for that debunked study *you* cited stating Asians and whites had higher IQ's. You don't know about the supposed correlation of brain size to IQ? It's all part of the same argument.
Do you have ANY idea how many researches came up with Asians and Jews with the highest IQ? Let's see...Pretty much every single research done on the taboo subject of race and intelligence. Arthur Jensen for example decades ago but also even before him. What is your constant fixation with one person? You fail to discredit a person but you act like if you do, that every other study on the matter for the past 80 years somehow gets discredited.

I am not aware of any others that once they were presented with additional information continued with the debate. I have a lot of respect for hitssquad. He and I obviously see things differently, but he backs up his arguments with facts. Usually not facts I agree with, but he's a tough adversary, something you are not.
And you're so tough. Oh no. Pioneer Fund. Whenever you mention it, I already know you have no argument. Either that or you completely blow off my questions. Let's see. How many questions so far have you ignored of mine?

Yes, I will win because when you are presented with information that debunks something you have stated, you are consistently incapable of responding with valid new information to support your position.
Incapable of responding with valid new information? Hmmm. Let's see. I think what you mean is all the times you refused to answer my question except go "I will answer later when I have time" Right...later...sure you will.

Perhaps while you answer those "later", you should also write a letter to all the academics in elite universities and also tell them they are wrong. You've got to be kidding yourself if you don't think this viewpoint isn't a popular one in the academic circles. The Bell Curve information was general knowledge in the science community far before the book was published. It proved nothing new. Why such a support in academic circles for something that's "debunked"
 
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  • #119
Evo said:
Well, you should have no problem posting a few of those studies here as I previously requested, which you have failed to do.
Hmmm funny it seems I already posted 4. Would you like to me post another 10?

BlackVision, you will find that when you start making things up like your above statement "there's probably well over 50,000 sources that will give you the 70% and 80% figures" you will immediately lose your credibility here.
Seems you have no more credibility to even lose. Putting political correctness and your own political motives before science.

And that's a made up statement? Right...cause the majority of sources don't state that number. Is this you trying to kid yourself again? Continue to have your fingers stuck to your ears.
 
  • #120
BlackVision said:
Did you even READ all the articles I posted? Obviously not. First read them, and then come back.
I only responded to the Bouchard post. Since you have failed repeatedly to respond to my debunking of it, it is obvious you have nothing to prove me wrong. I have won this one. If you bring up this topic again without providing evidence to support your claims I will not respond as I have no time to deal with an idiot.

BlackVision said:
Do you have ANY idea how many researches came up with Asians and Jews with the highest IQ? Let's see...Pretty much every single research done on the taboo subject of race and intelligence. Arthur Jensen for example decades ago but also even before him.
Why don't you post a few?
BlackVision said:
What is your constant fixation with one person? You fail to discredit a person but you act like if you do, that every other study on the matter for the past 80 years somehow gets discredited.
Again, I don't have a fixation, *you* are the one that keeps bringing Bouchard up, why, I have no idea.

BlackVision said:
And you're so tough. Oh no. Pioneer Fund. Whenever you mention it, I already know you have no argument. Either that or you completely blow off my questions. Let's see. How many questions so far have you ignored of mine?
Because Bouchard, Rushton, Lynn, Jenson, etc... are all affiliated with the Pioneer Fund, see some connection here?

BlackVision said:
Incapable of responding with valid new information?
I have yet to see you post one single thing that can refute anything I've said.
BlackVision said:
Hmmm. Let's see. I think what you mean is all the times you refused to answer my question except go "I will answer later when I have time" Right...later...sure you will.
I've answered all of your questions that were on the topic we were discussing. I have a lot of posts to make, I have to get the information off another laptop and I simply haven't had the time. Since I am still waiting for you to respond to my first request, I didn't feel any urgency.

Perhaps while you answer those "later", you should also write a letter to all the academics in elite universities and also tell them they are wrong. You've got to be kidding yourself if you don't think this viewpoint isn't a popular one in the academic circles. The Bell Curve information was general knowledge in the science community far before the book was published. It proved nothing new. Why such a support in academic circles for something that's "debunked"
The Bell Curve is flawed. Read this.

Sloppy Statistics, Bogus Science and the Assault on Racial Equity

"The "science" of books like The Bell Curve is inherently flawed, mostly because the concept of distinct biological "races" that can be studied, compared and found to be "superior" or "inferior" is itself a misnomer."

http://www.raceandhistory.com/historicalviews/ukwise.htm
 

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