This study, which is a part of a Moscow longitudinal twin project, aims to explore genetic and environmental contributions to inter-individual variability of temperamental traits in adolescence on the basis of a Russian sample. 85 monozygotic (MZ) and 64 same-sex dizygotic (DZ) twin pairs aged 12-14 years completed the children version of Rusalov Structure of Temperament Questionnaire (C-STQ). The results of model-fitting analyses indicate considerable hereditary determination of individual differences in 3 out of the 8 C-STQ dimensions-social tempo, objectrelated emotional sensitivity, and social emotional sensitivity. Non-shared environmental effects explained the rest of the total variance in these dimensions. Individual differences in the other STQ dimensions were due to environmental factors.
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George Washington Univ, Dept Psychol & Brain Sci, Washington, DC 20037 USAGeorge Washington Univ, Dept Psychol & Brain Sci, Washington, DC 20037 USA
Liu, Chang
Zheng, Yao
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Univ Alberta, Dept Psychol, Edmonton, AB, CanadaGeorge Washington Univ, Dept Psychol & Brain Sci, Washington, DC 20037 USA
Zheng, Yao
Ganiban, Jody M.
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George Washington Univ, Dept Psychol & Brain Sci, Washington, DC 20037 USAGeorge Washington Univ, Dept Psychol & Brain Sci, Washington, DC 20037 USA
Ganiban, Jody M.
Saudino, Kimberly J.
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Boston Univ, Dept Psychol & Brain Sci, Boston, MA 02215 USAGeorge Washington Univ, Dept Psychol & Brain Sci, Washington, DC 20037 USA