Genetic and environmental influences on self-concept among children: A twin study

허윤미

Korean Journal of Social and Personality Psychology

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Vol.19 No.2

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Genetic and environmental influences on self-concept among children: A twin study

Korean Journal of Social and Personality Psychology / Korean Journal of Social and Personality Psychology, (P)1229-0653;

2005, v.19 no.2, pp.91-102

(2005). Genetic and environmental influences on self-concept among children: A twin study. Korean Journal of Social and Personality Psychology, 19(2), 91-102.

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Abstract

The main purpose of the present study is to investigate genetic and environmental influences on self- concept among children in South Korea. A Korean version of the Piers-Harris Children's Self-Concept Scale and a zygosity questionnaire were administered to 226 pairs of monozygotic and 168 pairs of dizygotic twins through a mail survey. Piers-Harris Children's Self-Concept Scale included six self- concept scales, that is, Behavior, Physical Appearance and Attributes, Anxiety, Intellectual Competence and School Status, Popularity, and Happiness and Satisfaction. Intraclass correlation and path analyses were performed using Mx(Neale, 1997). On the six self-concept scales, genetic influences ranged from 12% to 35%, shared environmental influences, from 14% to 38%, and nonshared environmental influences, from 38% to 62%. Shared and nonshared environmental factors were strong in Behavior, Physical Appearance and Attributes, and Anxiety, whereas genetic factors were important for Popularity and Happiness and Satisfaction. Genetic and shared and nonshared environmental influences were all necessary in explaining variations in Intellectual Competence and School Status. These results were discussed in the context of previous findings based on Caucasian twin samples.

keywords: Genetics, Environments, Self-Concept, Twins, Path Model, 유전, 환경, 자아개념, 쌍둥이, 경로모델

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Article Contents

Vol.19 No.2

Genetic and environmental influences on self-concept among children: A twin study

Abstract

Reference

Korean Journal of Social and Personality Psychology