Using factor scores to detect G × E Interactive Origin of “pure” genetic or environmental factors obtained in genetic covariance structure analysis
✍ Scribed by P. C. M. Molenaar; D. I. Boomsma; D. Neeleman; C. V. Dolan; D. C. Rao; G. P. Vogler
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 463 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0741-0395
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✦ Synopsis
Moment expressions for individual factor scores can serve as simple tests for the presence of a particular class of interaction factors that are disguised as pure genetic and/or environmental factors. That is, individual genetic and environmental factor scores may be used to construct fourth-order moments of these factors in order to test whether a common genetic or environmental factor in the multivariate genetic factor model is in fact of the interactive origin concerned. Expected fourth-order moments are derived for cases with and without interaction. Application of fourthorder moments of factor scores to detect interactive origin of common factors is illustrated with simulated twin data.