Resemblances of Twins and Their Parents in Pattern A Behavior
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TL;DR
Results showed a modest genetic component for the Hard‐driving Competitive aspect of Pattern A and resemblances between the twins and their parents on Pattern A.
Abstract
A twin study was conducted to determine the relative contribution of genetic and environmental factors to the development of Pattern A behavior. Thirty-five sets of college-aged MZ twins and 21 sets of DZ twins completed the lenkins Activity Survey for Health Prediction. This self-administering questionnaire yields scales measuring Pattern A behavior and its related traits of Speed and Impatience, Job Involvement, and Hard-driving Competitiveness. Results showed a modest genetic component for the Hard-driving Competitive aspect of Pattern A. Data were also presented regarding resemblances between the twins and their parents on Pattern A.