Descriptor
Author
| DeFries, J. C. | 2 |
| Crawford, Charles B. | 1 |
| Plomin, Robert | 1 |
Publication Type
| Journal Articles | 1 |
| Reports - Research | 1 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedCrawford, Charles B.; DeFries, J. C. – Multivariate Behavioral Research, 1978
The application of component analysis to phenotypic, genetic, and environmental correlation matrices is discussed. Formulas for computation of component scores and the interpretation of factors is discussed. An example is presented. (Author/JKS)
Descriptors: Correlation, Environmental Research, Factor Analysis, Genetics
Peer reviewedPlomin, Robert; DeFries, J. C. – Intelligence, 1985
The present study is a behavioral genetic analysis of specific cognitive abilities in early childhood. Parent-offspring data for adopted children and nonadopted children in the Colorado Adoption Project were used. Significant correlations were found between biological mothers' IQ and the IQ of offspring, but not for specific cognitive abilities.…
Descriptors: Adopted Children, Analysis of Variance, Biological Parents, Cognitive Ability
