WHY DO PEOPLE DIFFER IN THEIR ACHIEVEMENT MOTIVATION? A NUCLEAR TWIN FAMILY STUDY

Authors

  • Lea Klassen Department of Psychology, Faculty for Psychology and Sport Science, Bielefeld University
  • Eike F. Eifler Department of Psychology, Faculty for Psychology and Sport Science, Bielefeld University
  • Anke Hufer Department of Psychology, Faculty for Psychology and Sport Science, Bielefeld University
  • Rainer Riemann Department of Psychology, Faculty for Psychology and Sport Science, Bielefeld University

DOI:

https://doi.org/10.19090/pp.2018.4.433-450

Keywords:

achievement motivation, behavioral genetics, Nuclear Twin Family Design

Abstract

Although many previous studies have emphasized the role of environmental factors, such as parental home and school environment, on achievement motivation, classical twin studies suggest that both additive genetic influences and non-shared environmental influences explain interindividual differences in achievement motivation. By applying a Nuclear Twin Family Design on the data of the German nationally representative of TwinLife study, we analyzed genetic and environmental influences on achievement motivation in adolescents and young adults. As expected, the results provided evidence for the impact of additive genetic variation, non-additive genetic influences, as well as twin specific shared environmental influences. The largest amount of variance was attributed to non-shared environmental influences, showing the importance of individual experiences in forming differences in achievement motivation. Overall, we suggest a revision of models and theories that explain variation in achievement motivation by differences in familial socialization only.

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Published

14.01.2019

How to Cite

Klassen, L., Eifler, E. F., Hufer, A., & Riemann, R. (2019). WHY DO PEOPLE DIFFER IN THEIR ACHIEVEMENT MOTIVATION? A NUCLEAR TWIN FAMILY STUDY. Primenjena Psihologija, 11(4), 433–450. https://doi.org/10.19090/pp.2018.4.433-450

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