Correlation between general factors for personality and cognitive skills in the National Merit twin sample |
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Authors: | John C. Loehlin |
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Affiliation: | Psychology Department, University of Texas, 1 University Station A8000, Austin, TX 78712-0187, USA |
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Abstract: | General factors of personality (based on the California Psychological Inventory) and cognitive skill (the National Merit Scholarship Qualifying Test selection score) were correlated .284 in a sample of 490 monozygotic and 317 dizygotic twin pairs. The correlation was partitioned into genetic, and shared and unshared environmental sources: approximately 39%, 50% and 11%, respectively. The results offered some support to a theory that such a correlation may reflect evolutionary trends, although questions remained about the role of nonadditive genetic variance and the nature of the selection involved. |
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Keywords: | General factor of personality (GFP) g Twins Selection Nonadditive genetic variance |
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