The current study examined interactions among genetic influences and children's early environments on the development of externalizing behaviors from 18 months to 6 years of age. Participants included 233 families linked through adoption (birth parents and adoptive families). Genetic influences were assessed by birth parent temperamental…

Data from 226 adoptive and 224 nonadoptive families was used to explore the etiology of individual differences in communication development. Children's scores from the Sequenced Inventory of Communication Development (SICD) were compared with verbal and cognitive ability measures of their parents. Sibling correlations were also examined. (SKC)

Post-adoption service use and unmet service needs were examined longitudinally in three matched groups of children: children adopted from Romanian orphanages following a minimum of eight months' institutional experience (RO: n = 36); children from Romania who were destined for orphanages but were adopted early in infancy (EA: n = 25); and Canadian…