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| Loehlin, John C. | 1 |
| Nichols, Robert C. | 1 |
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| Books | 1 |
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Loehlin, John C.; Nichols, Robert C. – 1976
This book reports on a study of 850 pairs of twins who were tested to determine the influence of heredity and environment on individual differences in personality, academic ability, and interests. It presents the background, research design, and procedure of the study, tabulations of the test results, and extensive analyses of the findings.…
Descriptors: Academic Ability, Data Analysis, Environmental Influences, Genetics
