title: Resemblances of twins and their parents in pattern A behavior.
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.
mesh_terms: D000328:Adult; D003071:Cognition; D003163:Competitive Behavior; D005260:Female; D005824:Genetics, Behavioral; D006801:Humans; D007175:Impulsive Behavior; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D010290:Parents; D010551:Personality; D010552:Personality Assessment; D011247:Pregnancy; D011581:Psychological Tests; D012737:Sex Factors; D012930:Social Dominance; D012931:Social Environment; D014427:Twins; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic