Between- versus within-family factor analyses of cognitive abilities |
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| Authors: | Craig T. Nagoshi Kay Phillips |
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| Affiliation: | 1. Department of Psychology, University at Albany, State University of New York, 1400 Washington Avenue, Social Sciences 399, Albany, NY 12222, USA;2. Department of Psychology, Drexel University, 3141 Chestnut Street, Stratton Hall 119, Philadelphia, PA, 19104, USA |
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| Abstract: | Confirmatory factor analyses of the 15 cognitive abilities tests from the Hawaii Family Study of Cognition were conducted on between-family (BF) means and within-family (WF) differences for 370 AEA (Americans of European ancestry) and 116 AJA (Americans of Japanese ancestry) sibling pairs. Difference chi-square significance tests, goodness-of-fit indices, and congruence coefficients for the estimated loadings on four specific cognitive abilities factors and on the second-order general intelligence factor nearly all indicated that the between-family factor structures were not significantly different from the within-family structures for both AEA and AJA siblings (the AEA and AJA structures were also not significantly different). The similarity of the BF and WF structures suggests that the genetic and environmental influences underlying cognitive abilities are “intrinsic” in nature, that is, not just due to between-family differences in culture, status, values, and fortuitous cross-assortative mating. |
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