IQ Score of 128: Analyzing Its Significance

  • Thread starter Thread starter Prof Sabi
  • Start date Start date
  • Tags Tags
    Iq Significance
Click For Summary
An IQ score of 128 is considered above average, likely placing an individual in the 96th percentile, but it does not qualify for Mensa membership, which requires a score in the top 2 percent. While some participants acknowledge the score's significance, others question the validity and utility of IQ tests, citing potential biases and the need for proper administration. The discussion highlights that high IQ does not guarantee success or intelligence in practical terms, emphasizing the importance of applying one's abilities in real-world contexts. Additionally, there are concerns about the accuracy of online tests and the relevance of IQ as a measure of potential. Ultimately, the consensus suggests that while IQ can indicate certain cognitive abilities, it should not define a person's worth or capabilities.
  • #31
IMHO IQ is a load of rubbish.

Without going into the details why, I had an IQ test done by my GP who has just completed his qualifications as a psychiatrist - you have to do a year as what's called a registrar here in Aus before you can start practicing your specialty unfettered, but are still qualified. While doing that he still saw his regular GP patients, especially those that were of a psychiatric nature. He basically thought them useless because they often have various focuses. Knowing I was a strong math type he administered one that was tilted toward that. I got 151 - it was used to shut up the people that were causing me trouble. But my linguistic skills were not quite that good and my more balanced IQ was likely lower. Anyway I failed grade 12, not because of IQ but being a lazy sod only interested in math/science. In my case it was utterly useless.

Lets take Feynman - he had an IQ of 128 yet had the highest admission scores in math and physics ever seen by Princeton - but the lowest ever seen in humanities.

So while I did good at uni, IQ IMHO is the same as Feynman's example - Feynmam was a genius of of the magician type - I was just a student that worked hard.

Thanks
Bill
 
Last edited:
  • Like
Likes Ryan_m_b
Physics news on Phys.org
  • #32
Aufbauwerk 2045 said:
However, I did manage to find the following links.

These don't look high quality. Apart from being very far from a primary source, the chain of inference is long and not very straight. It seems to be that SAT is correlated with IQ (although since 1994 Mensa has said there is no correlation), and GRE is correlated with SAT, so therefore GRE is a good proxy for IQ. This is far from evident, and I would say far from likely.
 
  • Like
Likes bhobba
  • #33
Vanadium 50 said:
These don't look high quality. Apart from being very far from a primary source, the chain of inference is long and not very straight. It seems to be that SAT is correlated with IQ (although since 1994 Mensa has said there is no correlation), and GRE is correlated with SAT, so therefore GRE is a good proxy for IQ. This is far from evident, and I would say far from likely.

Very interesting. After reading this I was curious why Mensa no longer accepts these tests. It turns out the reason is that they regard the newer versions of the tests as scholastic achievement tests, not as scholastic aptitude tests. They still accept these tests if you took them years ago, because they consider those as having been aptitude tests. They want Mensa membership to be based on your aptitude and not your achievement. I think their goal is a worthy one.

https://www.us.mensa.org/join/testscores/qualifying-test-scores/

This article has comments from a Dr. Salny who explains why certain newer tests are not accepted.

https://brane-space.blogspot.com/2013/08/why-so-many-past-aptitude-tests-are-no.html

For me this topic has no practical importance any more. But if I was trying to set up some kind of school for the gifted, I would not rely on one test to decide who was qualified.

I have read that Binet came up with IQ tests in the first place in order to identify French kids from poorer backgrounds who had an above average native intellectual ability. The idea was that these kids are an important resource for France and must be nurtured. They should be able to get the same education as a kid whose parents have money.

My conclusion is that I strongly support any effort to identify and help gifted children. They are a small percentage of the population, who happen to be critically important to our future progress. As for how good specific tests are, I am not qualified to judge.
 
  • #34
Scores in IQ tests are relative scores based on millions of results who took the very similar test. The low level of confidence for individuals renders measuring individual's intelligence not necessarily fully reliable because you can only take the test once and you might be having a bad day. (And taking the test more than once might change the result) However, in average, many thousands of other people will be rather in an appropriate condition to take the test. So yes, IQ test might fail to correctly measure Feynman's intelligence, but it does not make IQ test completely illegitimate IMO.
 
  • #36
bhobba said:
Knowing I was a strong math type he administered one that was tilted toward that. I got 151 - it was used to shut up the people that were causing me trouble. But my linguistic skills were not quite that good and my more balanced IQ was likely lower.

I'm in a similar boat. I scored in the bottom 1% on several tests involving memory and language, but my IQ was rated as average or slightly above average.
 
  • Like
Likes bhobba
  • #37
I'm intrigued by the question of what intelligence means.

Let's just take one type of question that might show up on an IQ test:

What's the next number in this sequence?

3, 8, 15, 24, 35, ?

That's an easy one: To get from one number to the next, add an increasing sequence of odd numbers: 5, 7, 9, 11. So the next time, you add 13 to get 48. So it's a sign of intelligence that you can solve these sorts of problems.

However, mathematically, there are an infinite number of rules that can match a finite sequence. So the "next number" is not actually uniquely defined. What you're really being asked is to guess what answer the question-maker probably wanted. Some rules that could generate the given sequence, would be rejected as too ad hoc, too ugly. Figuring them out would not give that sense of "a ha" that you get when you make a discovery.
 
  • #38
3, 8, 15, 24, 35, ?

That's an easy one: To get from one number to the next, add an increasing sequence of odd numbers: 5, 7, 9, 11. So the next time, you add 13 to get 48. So it's a sign of intelligence that you can solve these sorts of problems.

However, mathematically, there are an infinite number of rules that can match a finite sequence. So the "next number"...
Just quick comment
note each term 1 short of a square
4-1, 9-1, 16-1, 25-1, 36-1
2^2-1, 3^2-1, 4^2-1, 5^2-1, 6^2-1
 
  • Like
Likes Drakkith

Similar threads

  • · Replies 11 ·
Replies
11
Views
8K
Replies
45
Views
4K
Replies
19
Views
3K
  • · Replies 33 ·
2
Replies
33
Views
4K
  • · Replies 3 ·
Replies
3
Views
370
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 16 ·
Replies
16
Views
5K
  • · Replies 10 ·
Replies
10
Views
8K
Replies
24
Views
4K
  • · Replies 17 ·
Replies
17
Views
16K