Mandrake said:
The Bell Curve stands on its own merits and the highly supportive reviews of it by well known psychometricians from around the world.
Let's see, you claim that the authors of The Bell Curve are not psychometricians, then you quote the late Dorfman. Do you think he is a psychometrician? If so, why?
In making these assertions, one must ask for examples of scientific errors. The book was reviewed extensively and favorably by high profile psychometricians. As we all know 52 of them signed Gottfredson's letter, which listed the 25 salient points made by The Bell Curve. In order to discredit The Bell Curve, one must take on the full list of items she covered and the full list of scholars who signed the letter.
Oh for gosh sakes, the Wall Street Journal letter again? I really wish you people would read your own sources. Here is what that infamousletter says about race, IQ, and genetics:
"There is no definitive answer to why IQ bell curves differ across racial-ethnic groups. The reasons for these IQ differences between groups may be markedly different from the reasons for why individuals differ among themselves within any particular group (whites or blacks orAsians). In fact, it is wrong to assume, as many do, that the reason why some individuals in a population have high IQs but others have low IQs must be the same reason why some populations contain more such high (or low) IQ individuals than others. Most experts believe that environment is important in pushing the bell curves apart, but that genetics could be involved too."
Okay, so there you have it: if you still believe what you said above, then in order to continue arguing for the position that you have been arguing, you are going to have to explain why all those experts disagree with it.
Mandrake, I have noticed that all of your responses seem to (intentionally?) miss the point of my posts. I wonder what the correlation is between reading comprehension and g. In my last post re/ Gould and The Bell Curve, the main point, clearly stated, was to demonstrate your inconsistency. You tried to bully another poster into believing that Gould has no credibility because he is not a "psychometrician," then you offered as a more authoritative source The Bell Curve, which is a book written by two non-psychometricians. So your own position is inconsistent. If you now wish to claim that ideas should be evaluated on their own merits, without reference to the identity of the author of those ideas, then, I suggest you stick with that instead of attacking Gould ad hominem.
I have never suggested that one must be a "psychometrician" to comment on these matters, since that would be akin to claiming that only Catholic priests have the necessary expertise to comment on whether Catholic church dogma is objectively correct. As far as I am concerned, anyone should be able to comment on scientific matters, and if their ideas lack validity this will be demonstrated by the subsequent discussion.
There are publications in the peer-reviewed literature that are both in support of and critical of the genetic determinist position. In offering examples of anti-genetic determinist articles in the peer reviewed literature, I am countering your contention that these matters are settled. They are not settled, and your selective citations of sources that support only your own positions are helpfully contextualized by the citation of sources that are critical of positions such as yours. Your claim that there are no "experts" who disagree with your racist, genetic determinist positions is laughable. For example, here is what the American Psychological Association task force had to say about race and IQ:
"It is sometimes suggested that the Black/White differential in psychometric intelligence is partly due to genetic differences (Jensen, 1972). There is not much direct evidence on this point, but what little there is fails to support the genetic hypothesis.
...
It is clear (section 3) that genes make a substantial contribution to individual differences in intelligence test scores, at least in the White population. The fact is, however, that the high heritability of a trait within a given group has no necessary implications for the source of a difference between groups (Loehlin, et al, 1975)."
American Psychologist, February, 1996, p. 95.
Meanwhile, Lynn's IQ and the Wealth of Nations is reviewed in the current issue of Contemporary Psychology, the APA's official review journal. The authors of the review state:
"In sum, we see an edifice built on layer upon layer of arbitrary assumptions and selective data manipulation. The data on which the entire book is based are of questionably validity and are used in ways that cannot be justified." etc. etc. Contemporary Psychology 49.4 (2004): 389.
Now you are going to say that I ignored the positive reviews of The Bell Curve and Lynn's book. You are missing the point. You are doing a fine job on your own of bombarding physics forums with pro-genetic determinist propaganda, and I don't think you need any help from me in your efforts. I am simply trying to demonstrate that the positions you claim are "consensus among recognized scholars" are in fact highly controversial. The degree of controversy varies (Jensen's ideas are usually treated with respectful disagreement, while Lynn is widely reviled), but the main point, let me repeat it again, is that you have claimed that certain matters are settled by experts on human cognition, and these matters are, in reality, not only unsettled but highly controversial, and the positions you have staked out in regard to genetics and race are held by only a small minority of psychologists, biologists, and anthropologists.
I am not really trying to convince you to change your mind, Mandrake. I know that the True Believers in genetic determinism, racial hierarchies, and the other associated ideas, will never deviate from their faith. When the Jehovah's Witnesses come to my door, I don't try to convince them of the error of their ways, either. I simply want to make it know to others reading this message board that the theories you are describing are just that, theories, unproven, and disputed by experts in the relevant fields. For those wanting more information on this topic, I commend the exhibit "Deadly Medicine," on eugenic "science," at the National Holocaust Museum:
http://www.ushmm.org/museum/exhibit/online/deadlymedicine/
I invite everyone to compare the statements made by eugenics advocates in the 1930s with the statements made by genetic determinists on these message boards and draw their own conclusions. And now, having invoked Godwin's Law, I bid you adieu.