[sci.psychology] Genetics and IQ

cam@edai.ed.ac.uk (Chris Malcolm cam@uk.ac.ed.edai 031 667 1011 x2550) (08/25/89)

In article <519@athen.sinix.UUCP> es@athen.UUCP (Dr. Sanio) writes:
>
>Some questions and comments about IQ discussion:
>In the discussion twin studies have been mentioned. It was pointed out
>that a former "classic" inquiry contained faked results.

The following notes are taken from a review in the Guardian of "The Burt
Affair", R.B. Joynson, Routledge, the review by Dr Clare Burstall.

In 1976 Burt was accused of falsifying research results in order to
bolster his views on selective education, and of inventing research
assistants. In 1979 Prof Hearnshaw's biography of Burt endorsed these
charges, and added more. In 1980 The Council of the British
Psychological Society accepted Hearnshaw's arguments as "evidence of
fraud". 

I quote:

"The flaws in Hearnshaw are so glaring and ubiquitous that it seems as
though no one had seriously attempted to check ... the catalogue is
damming ... suspicion did duty for evidence ... Joynson states: `the
attempt to confirm Hearnshaw's account has failed; not occasionally and
incidentally, but repeatedly and crucially ... this enquiry provides
fresh grounds for supposing that Burt's most important data were in fact
genuine ... no reliable indication of fabrication whatever ... The Burt
affair must never be forgotten. It is a paradigm of the corruption of
scientific judgement by the common sense, the values, and the
controversies of the everyday world.' ... This is a scholarly and
measured account of of a patient and painstaking examination of the
evidence assembled in attempts to convict an innocent man of
acandalously fraudulent and deceitful behaviour."

Why? Joynson suggests, and Burstall agrees, that while Burt's data
(suggesting a substantial genetic component in IQ) at the time were
squarely in line with popular liberal views on education (e.g., that IQ
testing and streaming lifted up and gave a proper opportunity to clever
children whose background fell foul of teachers' prejudices), in the
1970s popular liberal views felt that grading and labelling children's
academic performance was a bad thing to do, and that any scientific
evidence suggesting the inheritance of intelligence smacked dangerously
of elitism, racism, etc.. So Burt was demolished, the strength of
popular feeling overwhelming scientific objectivity to the extent that
unsubstantiated rumour based on wishful thinking became textbook fact.

The controversy apparently still rages in comp.ai! Several posters have
argued in very strong terms that the notion that humans differ in basic
mental genetic endowment is tantamount to fascism, a denial of basic
human rights, a contradiction in terms, socialist nonsense,
evolutionarily improbable, manifestly silly, etc. etc.

I'm cross-posting to sci.psychology to find out what academic
psychologists think :-)
-- 
Chris Malcolm    cam@uk.ac.ed.edai   031 667 1011 x2550
Department of Artificial Intelligence, Edinburgh University
5 Forrest Hill, Edinburgh, EH1 2QL, UK		

hollombe@ttidca.TTI.COM (The Polymath) (08/29/89)

In article <528@edai.ed.ac.uk> cam@edai.ed.ac.uk (Chris Malcolm) writes:
}In article <519@athen.sinix.UUCP> es@athen.UUCP (Dr. Sanio) writes:
}>
}>[ Condemnatino of Burt's work. ]

}[ Vindication of Burt's work. Burt seen as victim of social mores. ]

}I'm cross-posting to sci.psychology to find out what academic
}psychologists think :-)

A point usually forgotten by both sides of the Burt argument is that
Burt's honesty, or lack of it, has nothing to do with the question in
hand.  There have long since been mountains of further studies, good and
bad, on the same subject.  Academically, Burt's work is merely one
footnote among many, and hardly definitive.

The consensus of these studies, to the best of my knowledge, remains
inconclusive.  The nature/nurture debate rages on.  Most reasonable,
scientific psychologists will agree that both play a significant part.
Which dominates under what conditions at what time of a person's life
remain questions for further research.

-- 
The Polymath (aka: Jerry Hollombe, hollombe@ttidca.tti.com)  Illegitimati Nil
Citicorp(+)TTI                                                 Carborundum
3100 Ocean Park Blvd.   (213) 452-9191, x2483
Santa Monica, CA  90405 {csun|philabs|psivax}!ttidca!hollombe

kja@cbnewsd.ATT.COM (krista.j.anderson) (08/29/89)

<>
No answers here, but I do have some related questions:
Have any studies been done on SAT or ACT scores that use an
analysis of variance or other technique to see whether (and
if so how) scores are affected by the students' *parents'*
educational level and socio-economic class?

Then next step, of course, would be to look at adopted children's
scores compared to their step-parents.  :-)
-- 
Krista A.

osborn@pipiens.usc.edu (Tom Osborn) (08/30/89)

In article <1434@cbnewsd.ATT.COM> kja@cbnewsd.ATT.COM (krista.j.anderson) writes:
>No answers here, but I do have some related questions:
>Have any studies been done on SAT or ACT scores that use an
>analysis of variance or other technique to see whether (and
>if so how) scores are affected by the students' *parents'*
>educational level and socio-economic class?

About ten years ago a friend of mine - Les Bobis - did a similar
study to the one you suggest in Newcastle, Australia. I helped with 
the statistics. The study involved 15 year olds and looked at
parent occupation, parent education, parent aspirations for themselves
and for the kids, and on the kids' side, aspiration and performance
in various aptitude and performance tests. "Social status" of the
parents' occupations was also included, and the study was
stratified.

The correlations were SO HIGH, that the write up was mainly as
case studies. All factors were significant (6+ sigmas, mostly)!!!

Basically, the kids performed and aspired to a level a bit higher
than the parents expected of them and a bit higher than the parents
had achieved. This also applied to IQ (except, of course, the parents
didn't 'expect' their kids' IQ scores, but they did rate their
'smartness' in a rankable way).

>Then next step, of course, would be to look at adopted children's
>scores compared to their step-parents.  :-)

As far as I know, Les didn't publish, but may get 'round to doing
a more extensive study one day. I do recall his study including
citations to similar work.

>Krista A.

Tom Osborn. *** AT USC for 6 months ***
---
Tom Osborn,                              |   Doon or Task Varoom
School of Computing Sciences,            |     the Belt holes -
University of Technology, Sydney,        |        Eat holes,
PO Box 123 Broadway 2007,  AUSTRALIA.    |           few. 

tsu00256@koryu.statci.junet (ohsaka) (09/10/89)

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