Skip to main content

View Diary: How did Jason Richwine Get a PhD from Harvard? (332 comments)

Comment Preferences

  •  Please link to the APA endorsement of IQ. (21+ / 0-)

    Hell, I will

    In response to the controversy surrounding The Bell Curve, the American Psychological Association's Board of Scientific Affairs established a task force to write a consensus statement on the state of intelligence research which could be used by all sides as a basis for discussion. The full text of the report is available at a third-party website.

    The findings of the task force state that IQ scores do have high predictive validity for individual (but not necessarily population) differences in school achievement. They confirm the predictive validity of IQ for adult occupational status, even when variables such as education and family background have been statistically controlled. They agree that individual (again, not necessarily population) differences in intelligence are substantially influenced by genetics.

    They state there is little evidence to show that childhood diet influences intelligence except in cases of severe malnutrition. They agree that there are no significant differences between the average IQ scores of males and females. The task force agrees that large differences do exist between the average IQ scores of blacks and whites, and that these differences cannot be attributed to biases in test construction. While they admit there is no empirical evidence supporting it, the APA task force suggests that explanations based on social status and cultural differences may be possible. Regarding genetic causes, they noted that there is not much direct evidence on this point, but what little there is fails to support the genetic hypothesis.

    So, no population comparisons.  Just as was done by Richwine and approved by his committee.

    "Empty vessels make the loudest sound, they have the least wit and are the greatest blabbers" Plato

    by Empty Vessel on Wed May 08, 2013 at 03:19:03 PM PDT

    [ Parent ]

    •  IQ was originally designated to measure... (18+ / 0-)

      the intelligence of children and their aptitude for problem solving.  The intelligence quotient itself is simply the mental age divided by the actual age.

      The developer strictly warned of trying to assess the IQ measure to adults.

      It is a measure of specific aptitudes deemed valuable by certain aspects of society and nothing more.  I am (was) a member of MENSA and that membership and a five dollar bill will get me a plain coffee at Starbucks.  It means I am a good problem solver and I am good at taking tests.

      It does not measure my ability to play music, navigate by the stars, socialize, make decisions, lead others, effectively communicate, etc...  It is a very small measure of the very broad concept of intelligence.

      Any attempt to measure a population's intelligence and compare it to another would have to factor in those specific societies' priorities, nutrition, language barriers, cultural barriers, and several other factors before it could even begin.  Even then, there would be no way to compare the results with 100% assurance the testing was not biased.  It is junk science, pure and simple.

      "Perhaps the sentiments contained in the following pages, are not YET sufficiently fashionable to procure them general favour..."

      by Buckeye Nut Schell on Wed May 08, 2013 at 04:50:52 PM PDT

      [ Parent ]

      •  Most of what you're saying is quite dated. (0+ / 0-)

        IQ tests have been revised substantially over the years, and usage of multiple tests combined with the actual correlation of the g factor instead of just a raw IQ is now far more common.

        Any attempt to measure a population's intelligence and compare it to another would have to factor in those specific societies' priorities, nutrition, language barriers, cultural barriers, and several other factors before it could even begin.
        These can all be accounted for (often relatively easily) as individuals of different races often live within the same culture and share the same background.   True, there's still some doubt about the validity of testing on isolated tribal groups and other subsets where environmental or cultural effects might drown out any heritable effect, but that hardly effects the science much as a whole.
    •  ...in 1995. (0+ / 0-)

      Additionally, I was referring to this part:

      The task force agrees that large differences do exist between the average IQ scores of blacks and whites, and that these differences cannot be attributed to biases in test construction.
      That's also their statement from 1995, right after the Bell Curve and almost 10 years ago.

      To my knowledge, they haven't updated their position since.

Subscribe or Donate to support Daily Kos.

Click here for the mobile view of the site