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 m
Estimation of individual genetic and environmental factor scores
β Scribed by D. I. Boomsma; P. C. M. Molenaar; J. F. Orlebeke; D. C. Rao; G. P. Vogler
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 513 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0741-0395
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β¦ Synopsis
Abstract
Implicit in the application of the commonβfactor model as a method for decomposing trait covariance into a genetic and environmental part is the use of factor scores. In multivariate analyses, it is possible to estimate these factor scores for the communal part of the model. Estimation of scores on latent factors in terms of individual observations within the context of a twin/family study amounts to estimation of individual genetic and environmental scores. Such estimates may be of both theoretical and practical interest and may be provided with confidence intervals around the individual estimates. The method is first illustrated with simulated twin data and next is applied to blood pressure data obtained in a Dutch sample of 59 male adolescent twin pairs. Subjects with high blood pressure can be distinguished into groups with high genetic or high environmental scores.
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