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.…

Based on the following premise the authors propose a process for the construction of human personality: Each man and woman is a researcher; therefore education is a relationship between a person and the environment which allows a person to master what he or she investigates, and in the course of such investigation a person engages in the process…