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| Environmental Influences | 1 |
| Extraversion Introversion | 1 |
| Family Environment | 1 |
| Foreign Countries | 1 |
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| Middle Aged Adults | 1 |
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| Twins | 1 |
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| Developmental Psychology | 1 |
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| Chipuer, H. M. | 1 |
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Peer reviewedChipuer, H. M.; And Others – Developmental Psychology, 1993
Assessed the family environment and personality of 400 pairs of 59-year-old twins. Genetic influences on extraversion and neuroticism were related to genetic influences on the family environment factors of relationship and personal growth but not to the factor of system maintenance. (BC)
Descriptors: Environmental Influences, Extraversion Introversion, Family Environment, Foreign Countries
