Behavioral genetics: The study of differences
Lalumière, Martin L.
Department of Psychology and Neuroscience, University of Lethbridge
Behavioural genetics is about partitioning the sources of individual differences in any trait that can be measured reliably. The fundamental question is how much of the observed variability in a given trait can be explained by the fact that people have different genes, and how much can be explained by the fact that people have been exposed to different environments.
Lalumière, M. L. (2005). Behavioral genetics: The study of differences (pp. 97-102). In J. R. Vokey & S. W. Allen (Eds.), Psychological Sketches (7th edition). University of Lethbridge, Alberta.