A Critical Analysis of IQ Studies of Adopted Children

Autor/inn/en	Richardson, Ken; Norgate, Sarah H.
Titel	A Critical Analysis of IQ Studies of Adopted Children
Quelle	In: Human Development, 49 (2006) 6, S.319-335 (17 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0018-716X
Schlagwörter	Criticism; Intelligence Quotient; Genetics; Adoption; Children; Parent Child Relationship; Correlation; Research Methodology; Factor Analysis; Environmental Influences; Context Effect; Research Problems; Pattern Recognition + Suchen Sie Ihr Suchwort? Kritik; Intelligenzquotient; Humangenetik; Child; Kind; Kinder; Parents-child relationship; Parent-child-relation; Parent-child relationship; Eltern-Kind-Beziehung; Korrelation; Research method; Forschungsmethode; Faktorenanalyse; Environmental influence; Umwelteinfluss; Forschungskritik; Mustererkennung
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. (Contains 5 tables.) (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10