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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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Peer reviewed Peer reviewed
ERIC Number: EJ205811
Record Type: CIJE
Publication Date: 1979
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Seeking the Cause of Correlations among Mental Abilities: Large Twin Analysis in a National Testing Program.
Page, Ellis B.; Jarjoura, David
Journal of Research and Development in Education, v12 n2 p108-17 Win 1979
A computer scan of ACT Assessment records identified 3,427 sets of twins. The Hardy-Weinberg rule was used to estimate the proportion of monozygotic twins in the sample. Matrices of genetic and environmental influences were produced. The heaviest loadings were clearly in the genetic matrix. (SJL)
Descriptors: Academic Achievement, Achievement Tests, College Bound Students, Factor Analysis, Heredity, Intelligence, Nature Nurture Controversy, Research Methodology, Sampling, Twins
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: ACT Assessment