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  • Title: The heritability of memory in the Western Reserve Twin Project.
    Author: Thapar A, Petrill SA, Thompson LA.
    Journal: Behav Genet; 1994 Mar; 24(2):155-60. PubMed ID: 8024532.
    Abstract:
    The heritability of memory ability was examined using 137 monozygotic and 127 same-sex dizygotic twin pairs from the Western Reserve Twin Project. Memory was assessed by eight measures drawn from the following batteries: the Wechsler Intelligence Scale for Children--Revised, the Colorado Test of Specific Cognitive Abilities, and the Cognitive Abilities Test. The results indicate that phenotypic correlations are generally low across these memory measures and heritability varies as a function of memory measure. These findings suggest that the heritability of memory varies as a function of the memory measure employed. Therefore, future studies investigating heritability estimates of memory should use a multimeasure battery to study this construct.
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