A longitudinal twin study of general cognitive ability over four decades.
Abstract
In this longitudinal study we examined the stability of general cognitive ability (GCA), as well as heterogeneity and genetic and environmental influences underlying individual differences in change. We investigated GCA from young adulthood through late midlife in 1,288 Vietnam Era Twin Study of Aging participants at ages ∼20, ∼56, and ∼62 years. The correlations among the 3 occasions ranged from .73 to .85, reflecting substantial stability. The...
Paper Details
Title
A longitudinal twin study of general cognitive ability over four decades.
Published Date
Jun 1, 2017
Journal
Volume
53
Issue
6
Pages
1170 - 1177
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