Genetic and Environmental Covariation between Verbal and Nonverbal Cognitive Development in Infancy.

Price, Thomas S.; Eley, Thalia C.; Dale, Philip S.; Stevenson, Jim; Plomin, Robert

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Peer reviewed

ERIC Number: EJ620371

Record Type: Journal

Publication Date: 2000

Pages: N/A

Abstractor: N/A

ISBN: N/A

ISSN: ISSN-0009-3920

EISSN: N/A

Genetic and Environmental Covariation between Verbal and Nonverbal Cognitive Development in Infancy.

Price, Thomas S.; Eley, Thalia C.; Dale, Philip S.; Stevenson, Jim; Plomin, Robert

Child Development, v71 n4 p948-59 Jul-Aug 2000

Examined infant verbal and nonverbal cognitive development for 1,937 pairs of same-sex 2-year-old twins. Found that verbal and nonverbal development correlated .42. Genetic factors were responsible for less than half of this phenotypic correlation. The genetic correlation between verbal and nonverbal abilities was only .30, suggesting that genetic effects on verbal and nonverbal abilities are largely independent in infancy. (Author/KB)

Descriptors: Cognitive Development, Cognitive Processes, Infants, Nature Nurture Controversy, Nonverbal Ability, Theories, Twins, Verbal Ability, Vocabulary Skills

Publication Type: Journal Articles; Reports - Research

Education Level: N/A

Audience: N/A

Language: English

Sponsor: N/A

Authoring Institution: N/A

Grant or Contract Numbers: N/A