The following may or may not accord with Dave's belief, but it is mine
anyway .....
1. There's no problem about calculating percentages of variance. (Not many,
anyway)
2. The problems are:
2a. are these percentages are in any sense 'effects'
2b. if they are, is 'heritability' the right name for this particular
effect?
I would say:
2a: if you are careful
2b: if you are extremely massively very very careful and if nobody
misunderstands you (so probably better not because they are bound to). Can
someone please suggest a better name?
By naming a thing, we claim an identity for it that may not be justified.
Best Regards
JOHN BIBBY aa42/MatheMagic
1 Straylands Grove, York YO31 1EB (01904-330-334)
All statements are on behalf of aa42.com Limited, a company wholly owned by
John Bibby and Shirley Bibby. See www.aa42.com/mathemagic and
www.mathemagic.org
-----Original Message-----
From: email list for Radical Statistics [mailto:[log in to unmask]] On
Behalf Of Martin Sewell
Sent: 21 June 2007 01:11
To: [log in to unmask]
Subject: Re: Hereditability
At 00:26 21/06/2007 +0100, Dave Gordon wrote:
>My last e-mail seems to have given the unfortunate impression that I
>believe that it is possible to calculate the 'genetic' heritability
>of IQ scores. Nothing could be further from the truth, I believe
>that all such studies are utter drivel and not worth the paper they
>are printed on. [...]
Your (uninformed) opinion on the heritability of intelligence is at
odds with that of the experts. I would sooner concur with those who
have spent a lifetime working in the area.
Read the following:
GOTTFREDSON, Linda S., 1997. Mainstream Science on Intelligence: An
Editorial with 52 Signatories, History, and Bibliography.
Intelligence 24(1) 13-23.
NEISSER, Ulric, et al., 1996. Intelligence: Knowns and Unknowns.
American Psychologist, 51(2), 77-101.
Regards
Martin
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