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| Age | 1 |
| Behavior Patterns | 1 |
| Behavior Problems | 1 |
| Environmental Influences | 1 |
| Genetics | 1 |
| Longitudinal Studies | 1 |
| Measures (Individuals) | 1 |
| Mothers | 1 |
| Twins | 1 |
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| Developmental Psychology | 1 |
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| Bartels, M. | 1 |
| Boomsma, D. I. | 1 |
| Hudziak, J. J, | 1 |
| Rietveld, M. J. H. | 1 |
| van Beijsterveldt, C. E. M. | 1 |
| van den Oord, E. J. C. G. | 1 |
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| Elementary Education | 1 |
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Direct linkBartels, M.; van den Oord, E. J. C. G.; Hudziak, J. J,; Rietveld, M. J. H.; van Beijsterveldt, C. E. M.; Boomsma, D. I. – Developmental Psychology, 2004
Maternal ratings on internalizing (INT) and externalizing (EXT) behaviors were collected in a large, population-based longitudinal sample. The numbers of participating twin pairs at ages 3, 7, 10, and 12 were 5,602, 5,115, 2,956, and 1,481, respectively. Stability in both behaviors was accounted for by genetic and shared environmental influences.…
Descriptors: Environmental Influences, Twins, Genetics, Behavior Patterns
