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50 Years of ERIC
50 Years of ERIC
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Peer reviewed Peer reviewed
ERIC Number: EJ514025
Record Type: CIJE
Publication Date: 1995
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0002-4805
"The Bell Curve" on Separated Twins.
Fancher, Raymond E.
Alberta Journal of Educational Research, v41 n3 p265-70 Sep 1995
"The Bell Curve" declares that studies of separated identical twins--the "purest" of "direct" methods for estimating IQ heritability--indicate a value of +.75-+.80. But, the main study cited suggests a heritability of "two-thirds" for the middle class, and Herrnstein and Murray neglect to mention numerous complicating factors in twin studies that have inflated IQ correlations. (Author/SV)
Descriptors: Adopted Children, Correlation, Heredity, Intelligence Differences, Intelligence Quotient, Nature Nurture Controversy, Psychological Studies, Research Problems, Twins
Publication Type: Information Analyses; Opinion Papers; Journal Articles
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Bell Curve (Herrnstein and Murray)
Note: Theme issue title: Canadian Perspectives on "The Bell Curve."