Birth Order and Lateral Preferences
Cortex, Vol. 22, pp. 567-578, 1986
12 Pages Posted: 15 Jul 2010
Date Written: 1986
Abstract
Associations between birth order and lateral preferences of hand, eye, and foot were examined in a sample of 6436 black seven-year-old boys and girls whose mothers participated in the Collaborative Perinatal Project (CPP) in Philadelphia. Overall, most of the subjects (87%) showed right-hand preference, and the majority of the subjects showed right-eye (55%) and foot (63%) preferences. Analysis of cross preferences indicated some tendency for a consistent right side orientation. However, patterns of lateral preferences were similar for both boys and girls across seven birth order groups. The data were interpreted as showing that birth order and lateral preferences are not interrelated.
Keywords: left-hand, right-hand, left-foot, right-foot, left-eye, right-eye, birth order
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