ASIAN M/F BRAIN DIFFERENCES REFLECT CLOSER MATH ABILITY From: Ralph L Holloway Our preliminary analysis of sex differences in the corpus callosum of an Asian sample is indicating no significant sex dimorphism in relative CC size, or splenial size. This is coherant with these observations regarding much less sex dimorphism re math abilities. Ralph Holloway On Fri, 11 Jun 1999, Patricia Hausman wrote: > ratio is 13:1. They later reported that when > the top percentile is examined by ethnicity, > the m/f ratio is not nearly as dramatic among > Asians. Their figures are 4:1 in favor of males Ralph L. Holloway Dept. Anthropology Columbia University NY, NY 10027 . +OK 1679 octets Received: from smtp06.nwnexus.com (smtp06.nwnexus.com [206.63.63.45]) by mail3.halcyon.com (8.8.8/8.8.8) with ESMTP id QAA15185 for ; Mon, 14 Jun 1999 16:00:47 -0700 (PDT) Received: from aloha.cc.columbia.edu (cu50427@aloha.cc.columbia.edu [128.59.59.134]) by smtp06.nwnexus.com (8.8.8/8.8.8) with ESMTP id QAA02413 for ; Mon, 14 Jun 1999 16:00:46 -0700 (PDT) Received: from localhost (rlh2@localhost) by aloha.cc.columbia.edu (8.8.5/8.8.5) with ESMTP id TAA13531; Mon, 14 Jun 1999 19:01:02 -0400 (EDT) Date: Mon, 14 Jun 1999 19:01:02 -0400 (EDT) From: Ralph L Holloway Sender: rlh2@columbia.edu To: Arthur Hu cc: phausman@digizen.net Subject: Re: [h-bd] Female nerds: dissertation findings In-Reply-To: <199906142215.PAA13495@mail4.halcyon.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Status: On Mon, 14 Jun 1999, Arthur Hu wrote: > translated into english, does this mean that Asians dont > show as marked a gender difference in brain structure as > whites? what about blacks (where evidrently far more > women grad college than men) > Yes, thanks for the translation. Our original studies used both black and white brains and did not discriminate between them. Our Australian data showed high dimorphism. This Asian sample is small, and is also older, but so far there does appear to be less sex dimrophism in the brain.> Ralph L. Holloway Dept. Anthropology Columbia University NY, NY 10027 212-854-4570 Fax= 212-854-7347 . +OK 4295 octets Received: from smtp12.nwnexus.com (smtp12.nwnexus.com [206.63.63.60]) by mail3.halcyon.com (8.8.8/8.8.8) with ESMTP id PAA24100 for ; Mon, 28 Jun 1999 15:54:50 -0700 (PDT) Received: from md.egroups.com (md.egroups.com [207.138.41.139]) by smtp12.nwnexus.com (8.8.8/8.8.8) with SMTP id PAA31601 for ; Mon, 28 Jun 1999 15:54:49 -0700 (PDT) Received: from [10.1.1.23] by md.egroups.com with NNFMP; 28 Jun 1999 23:54:48 -0000 Mailing-List: contact h-bd-owner@egroups.com X-Mailing-List: h-bd@egroups.com X-URL: http://www.egroups.com/list/h-bd/ Delivered-To: listsaver-egroups-h-bd@egroups.com Received: (qmail 16755 invoked by uid 7770); 28 Jun 1999 22:53:38 -0000 Received: from qh.egroups.com (HELO qh.findmail.com) (10.1.2.28) by ivault.egroups.com with SMTP; 28 Jun 1999 22:53:37 -0000 Received: (qmail 30267 invoked from network); 28 Jun 1999 22:53:38 -0000 Received: from mail.digizen.net (209.194.78.10) by qh.egroups.com with SMTP; 28 Jun 1999 22:53:38 -0000 Received: (qmail 28039 invoked from network); 28 Jun 1999 21:52:41 -0000 Received: from ppp1-247.digizen.net (HELO phausman) (209.194.78.247) by mail.digizen.net with SMTP; 28 Jun 1999 21:52:41 -0000 Message-ID: <002d01bec1b8$7ae19560$f74ec2d1@phausman> From: "Patricia Hausman" To: , "Carol Iannone" Date: Mon, 28 Jun 1999 18:49:26 -0400 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.1 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Subject: [h-bd] Re: Asian query follow-up Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Status: Carol wrote: >There was some question as to whether the lower verbal performance exists >mainly for English as a Second Language Asians, and not for those who have >English first. This is unresolved I think. I think this is a legitimate question independent of ethnicity and first language. In my own research (using the military aptitude test), I found scoring patterns suggesting some kind of trade-off between mathematical-technical domains and verbal domains when general ability is held constant. For example, I had two groups of females, each with a mean AFQT score in the 94th percentile. Group 1 had a pattern marked by higher math and technical subtest scores (e.g. mechanical comprehension, auto/shop knowledge, general science) and slightly lower verbal scores. Group 2 showed the opposite pattern, with slightly better verbal scores than group 1, and somewhat lower scores in the math-technical arenas. I saw a similar phenomenon when I looked at high- scoring males: within the top decile of the AFQT, a superior- verbal and a superior-technical group. "Verbal ability" encompasses a range of competencies--not simply the verbal reasoning measured by instruments such as the SAT-V. I have read a few papers which suggest a trade-off between spatial ability and verbal fluency. I suspect that in general, verbal reasoning is a better pre- dictor of college performance, while verbal fluency would be relevant to likelihood of success in specific careers. Some interesting data on sex differences within various ethnic groups can be found in Gender and Fair Assessment, published by ETS a few years ago. The data are bar- graphed, making small differences a bit difficult to detect. However, the magnitude of variation between males and females does appear to me to be smaller in the Asian cohort. Hope this helps. Best, Patti ------------------------------------------------------------------------ Don't let the next virus knock you out! 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