Following a 1986 study reporting a predominance of ambivalent attachment among insecure Sapporo infants, the generalizability of attachment theory and methodologies to Japanese samples has been questioned. In this 2nd study of Sapporo mother-child dyads (N = 43), the authors examined attachment distributions for both (a) child, based on M. Main…

Described is the development of a method for identifying and classifying differing attachment organizations at six years of age. The system is based on an analysis of children's responses to reunion with parents following a one-hour separation. Sixth year attachment classifications to mother were found to be highly predictable from infancy…

Individual differences in children's conceptual strategies at 3 years of age were predicted by aspects of children's behavior and language at 13 and 24 months. Production of pointing gestures at 13 months and nouns and attributive adjectives at 24 months were positively associated with the use of a taxonomic matching strategy at 3 years of age.…

Two studies examined in-group favoritism and out-group prejudice among two samples of white 4- to 7-year-olds. Findings indicated that the two attitudes were reciprocally correlated in the sample from a racially homogeneous school but not in the sample from a mixed-race school. In-group favoritism did not appear until 5 years of age and was…