A Study of 850 Sets of Twins
by
John C. Loehlin, Robert C. Nichols
Language: English
Release Date: November 6, 2014
This volume 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, ability, and interests. It presents the background, research design, and procedures of the study, a complete tabulation of the test results,...