Richardson, K and Norgate, SH 2006, 'A critical analysis of IQ studies of adopted children' , Human Development, 49 (6) , pp. 319-335.

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Abstract

The pattern of parent-child correlations in adoption studies has long been interpreted to suggest substantial additive genetic variance underlying variance in IQ. The studies have frequently been criticized on methodological grounds, but those criticisms have not reflected recent perspectives in genetics and developmental theory. Here we apply those perspectives to recent IQ adoption studies and show how they further question two sets of problems: first, the assumption of additive gene and environmental effects; second, the assumption that the adoption situation approximates a randomized-effects design. We show how a number of possible factors having systematic effects in breach of those assumptions can produce the received pattern of correlations without appealing to unusual amounts of additive gene variance.

Item Type:	Article
Uncontrolled Keywords:	Adoption, development, intelligence, IQ
Themes:	Subjects / Themes > H Social Sciences > HQ The family. Marriage. Woman > HQ503 The family. Marriage. Home > HQ0767 Children. Child development Subjects / Themes > R Medicine > R Medicine (General) Health and Wellbeing Subjects outside of the University Themes
Schools:	Colleges and Schools > College of Health & Social Care > School of Health Sciences > Centre for Health, Sport & Rehabilitation Sciences Research Colleges and Schools > College of Health & Social Care Colleges and Schools > College of Health & Social Care > School of Nursing, Midwifery & Social Work > Centre for Social Justice Research
Journal or Publication Title:	Human Development
Publisher:	S. Karger AG, Basel
Refereed:	Yes
ISSN:	0018716X
Depositing User:	H Kenna
Date Deposited:	03 Aug 2007 11:35
Last Modified:	16 Mar 2012 16:06
URI:	http://usir.salford.ac.uk/id/eprint/94

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