ttac,
"Clearly, a high IQ does not necessarily mean that one will accomplish things that will change the world. In certain academic fields, however, I think it is a prerequisite for such accomplishments. For example, I am fairly sure that nobody that has won a nobel prize in physics in the last 30 years has had an IQ less than 150. I would be quite surprised if they did. I believe that IQ does measure something, and that is 'intellectual potential'."
My opinion is that, once an individual's measured IQ reaches a certain point, the tests fail in making any substantive predictions about that person's global intellectual ability. Basically, I think that current tests have ceilings much lower than advertised.
You and gbemi have categorized IQs that differ by 5-10 points. I think that such differences, and any consequent distinctions and categorizations, are completely meaningless. I imagine that the functional differences between stratospheric intellects become more and more subtle, and increasingly more difficult to quantify. Given our limited knowledge of the related neurophysiology, and the difficulties inherent in assessing one intellect with another, I think our current measurement methods are very deficient.
"Here's a listing of the factors that I think contribute to 1)MCAT 2)Med school performance 3) Life accomplishments"
[snip...pretty much agree]
"MCAT 24 = IQ 112
MCAT 27 = IQ 120
MCAT 30 = IQ 125
MCAT 32 = IQ 130
MCAT 34 = IQ 140
MCAT 37 = IQ 150
MCAT 40 = IQ 155
MCAT 44 = IQ 162+"
Again, while I agree that there is a correlation, I don't think there is any valid way of being this exact. In addition, the three subsections allow for different score combinations so, you will need to account for that as well.
"This is based on the following data points (admittedly my numbers below 27 are pure speculation):
a)My 41-43 MCAT/160 IQ HST friend
b)My 40-42 MCAT/155-160 IQ friend
c)Myself
d)My 34 MCAT/140 IQ neighbor
e)Average MCAT/IQ of med students
f) My roommate"
These could be coincidental findings. Undoubtedly, a person with a score of 45 is going to be fairly intelligent, and a person who consistently scores a 23 will be less intelligent, but I doubt that any earth-shattering, intellectual disparitywill result from a difference of 4 IQ points.
[snip...agree]
[Me: Clearly, IQ tests are measuring something. However, statistical acrobatics, in and of themselves, won't provide much useful information. Ratio IQ, childhood scores... kinda useless...]
I disagree. IQ (while not perfect), is the best objective criterion we have for determining how 'smart' somebody is.
I might be the best we have, but that doesn't mean that it is anywhere near adequate. (But I didn't mean to imply that childhood scores are useless when we're talking about assessing children.)
Look, in one of his posts, Gbemi said:
"Do you know what an IQ of 170 means? Your IQ of 130+ should place you anywhere between 1 out of 50-100; on the otherhand, an IQ of 170 places an individual in 1 out of a 100,000! A person with that IQ, is statistically speaking, atleast a 1000 times smarter than you. A THOUSAND TIMES SMARTER !!! Your inability to score very high on the MCAT in spite of your outstanding SAT scores and good grades says nothing of how correlated IQ is to the MCAT. Rather, it suggests that you are a very intelligent person (an IQ of 130+ places you in the top 2% of the general population) who studied hard in school to do dwell on the SATs and in in-class exams. A person with an IQ of 170 is in the top .0001%. Do you realize how AMAZING that is? There are only 3,000 people with this IQ or higher in a country (the United States) of 300,000,000 people. A person with this IQ is about 30 times smarter than the average science NOBEL PRIZE WINNER (IQ of 155)!!! Einstein's and Hawkings' IQ are probably not this high."
So, apparently, Gbemi knows *exactly* what an IQ of 170 means. Forget them THOUSAND TIMES SMARTER folks, now *that's* amazing!
I'd bet that if you had tested the average childhood IQ of PhD's in math and physics, or nobel prize winners, it would be apparent that their ratio IQ's as children would be much higher than 100. If this is true, then childhood IQ is useful. Once again, childhood IQ only shows _potential_.
Potential, and innate ability, actually is all I care about. There are many things in life one could devote time to, so the fact that a certain person never goes on to win a Nobel prize, or whatever, doesn't really tell us much. Besides, the idea of intellectual accomplishment can't be confined to the halls of academia, or some other structured, major life activity. High cognitive capacity will make itself apparent in many other facets of everyday existence.
But, as I've said before, I'm sure that IQ tests are useful, to a certain point.
As you pointed out, it is possible to have a high IQ and not accomplish anything earth-shattering (Chris Langan). But there are confounding factors here. Alot of childhood geniuses either burn out, or are lacking in social interaction to the detriment of their overall development. They may be intellectually lazy, because they could get away with it in school.
It's also possible that a number of childhood geniuses reach some sort of saturation point in terms of their intellectual development, and don't progress further, thus becoming fairly, but not freakishly, intelligent adults.
In Chris Langans case, he was beaten as a child. However, after spending the first part of his life in relative obscurity, he IS making discoveries and advancing his field.
Perhaps because Chris is the only one working in "his" field.
[Me: Gbemi, it seems your interactions in the HIQ circuit are proving quite intoxicating. While I'm sure that you can objectively judge some of the accomplishments of some of the Mensans, Glians, and Triple Niners you've come in contact with, the basis of much of your praise rests on other, vague, personal assessments.]
I would hardly call Nobel prizes, PhD's, or revolutionary discoveries in mathematics "vague and personal".
I was referring to the HIQ society chit-chat.
These are objective measures of accomplishment, and almost without exception, were the results of the labors of individuals with a high-IQ. If there really was no correlation between high IQ and these discoveries, you would find that many nobel prize winners would have IQ's of 100, and half of them less than that. Essentially, an IQ histogram of nobel prize winners would be superimposable on that of the general population (mean=100, SD= 15). Of course the amplitude would be different.
To clarify: An IQ of 150 is about 1 in 1000. There have been 700 Nobel prizes awarded so far.
http://www.utexas.edu/cola/depts/swedish/sympnobel/quiz.html
Ergo, you would expect that barely 1 Nobel prize winner would have an IQ of 150. This is a ridiculous assertion.
You won't find me claiming that such accomplishments are the result of an average intellect.
[Me: Anyway, I don't doubt that that the MCAT score correlates with one's intelligence (with the verbal section probably correlating most strongly).]
Agreed, as long as English was your first language.
Well, as long as you acquired it early enough in life.