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ERIC Number: EJ1050050
Record Type: Journal
Publication Date: 2013-Sep
Pages: 15
Abstractor: As Provided
Reference Count: 82
ISBN: N/A
ISSN: ISSN-0012-1649
Patterns and Sources of Continuity and Change of Energetic and Temporal Aspects of Temperament in Adulthood: A Longitudinal Twin Study of Self- and Peer Reports
Kandler, Christian; Riemann, Rainer; Angleitner, Alois
Developmental Psychology, v49 n9 p1739-1753 Sep 2013
This study investigated the mean-level and individual-level trends as well as the genetic and environmental sources of rank-order continuity and change in temperament traits ("Briskness, Perseveration, Sensory Sensitivity, Emotional Reactivity, Endurance, and Activity"). We analyzed self-reports and peer ratings from 2 adult age groups of twins, aged 15--30 (n = 348; 113 monozygotic and 61 dizygotic twin pairs) and 31--67 (n = 352; 110 monozygotic and 66 dizygotic twin pairs), captured at 2 different points of time 13 years apart. Temperament traits were fairly stable accompanying high levels of heritability. However, they also undergo mean-level, individual-level, and rank-order changes. In young adulthood, rank-order change was due to both genetic and environmental factors, whereas in older adult years, rank-order change was predominantly attributable to environmental effects. Phenotypic rank-order continuity was larger for older adults due to higher genetic as well as environmental continuity. For specific temperament traits (e.g., Activity), environmental variance proportionally increased across adulthood compared with genetic variance resulting in decreasing levels of heritability, whereas the reverse was found for other traits (e.g., Endurance). Specifics regarding the traits studied were discussed. The results indicate a complex interplay between genetic and environmental sources resulting in continuity and change of temperament across adulthood.
American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Germany