The Colorado Adoption Project.
Rhea Sally-Ann, Bricker Josh B, Wadsworth Sally J, +1 more·Twin research and human genetics : the official journal of the International Society for Twin Studies
This paper describes the Colorado Adoption Project (CAP), an ongoing genetically informative longitudinal study of behavioral development. We describe the features of the adoption design used in CAP, and discuss how this type of design uses data from both parent-offspring and related- versus unrelated-sibling compariso…