title: Stability of type A behavior during adolescence, young adulthood, and adulthood.
abstract: The stability of Type A behavior was studied in 1737 randomly selected adolescents and young adults. The method used was the AFMS questionnaire, which is based on the Matthews Youth Test for Health and a Swedish version of the Jenkins Activity Survey. Results showed that in males Type A behavior remained at the same degree of stability during adolescence, later adolescence, young adulthood, and adulthood. In girls, Type A behavior showed no stability during adolescence, a high stability during young adulthood, and a slightly lower degree of stability in adulthood.
authors.affiliation: Department of Psychology, University of Helsinki, Finland.
authors.forename: L
authors.initials: L
authors.lastname: Keltikangas-Järvinen
mesh_terms: D000293:Adolescent; D000328:Adult; D015331:Cohort Studies; D005260:Female; D005387:Finland; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D015337:Multicenter Studies as Topic; D010553:Personality Development; D010556:Personality Tests; D014434:Type A Personality