Some of the most intriguing issues in the study of cognitive, social, emotional, and physical development arise in the debate over nature versus nurture; a debate difficult to resolve because it is difficult to separate the respective contributions of genes and environment to development. The most powerful approach to this separation is through longitudinal adoption studies. The Colorado Adoption Project (CAP) is the only longitudinal adoption study in existence examining development continuously from birth to adolescence, which makes it a unique, powerful, and tremendously valuable resource....

In light of work by quantitative geneticists, the authors reconsider the interaction of heredity and environment in the development of individual differences during infancy and early childhood. Quantitative genetics offers a general theory of the development of individual differences that suggests novel concepts and research strategies: the idea that genetic influences operate in age-to-age change as well as in continuity, for example. Quantitative genetics also provides powerful methods to address questions of change and continuity which are helpfully introduced in this study. Longitudinal...

With its clear and concise presentation, Behavioral Genetics, 7th edition introduces students to the field's underlying principles, defining experiments, ongoing controversies, and most recent discoveries. The text provides students with an understanding of heredity, it's DNA basis, the methods used to discover genetic influence on behavior and identify specific genes. It then examines what is known about genetic influence on cognitive ability, psychopathology, substance abuse, personality, health psychology, and aging. Finally it looks ate the future of the field of Behavioral...