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The Colorado adoption project
The Colorado Adoption Project (CAP), begun in 1976, is a longitudinal adoption study that examines genetic and environmental influence on behavioral development. Investigators employed a "full" adoption design by collecting data from the adoptive and biological parents, the adoptees and matched control parents and their children. While the entire data set includes measures from the predominantly white parents, siblings, and focal children (probands) spanning over a twenty year period, the Murray Center has only acquired data on the children from the first 7 years of the project and on the parents. Murray Center holdings include data from seven waves of data collection on 490 children (245 adopted and 245 controls). Children were given standardized tests of mental and motor development, communication, personality, and temperament. Additional assessments included home observations,...