A hierarchical cluster analysis of the time course of the videotaped reactions of 75 Chinese 2-4-year olds to mothers' toy-removal identified Distress, Low Anger, and High Anger behavior clusters. Anger often begins at low intensity; some children then escalate. The face-validity of Low and High Anger-cluster classifications was supported in that…

The article presents 30-year bibliometrical results on trends in the scope, internationality, and impact of the "International Journal of Behavioral Development" ("IJBD") from its inception in 1978 to 2007. Bibliometric data were collected using the databases PsycINFO and Social Science Citation Index (SSCI), and the "IJBD" itself. In comparison…

Examines developmental differences in category labeling in a communication situation. Adult women and nine-year-old children instructed seven-year-olds in the organization of groceries in a mock kitchen or in the organization of photographs of common objects into compartments as a "homework" assignment. Both adults and children gave more…

On the basis of a study involving 40 first-grade students, compares Pascual-Leone's and Keating and Bobbitt's developmental theories of information processing by contrasting their predictions about a classification task. Results falsified Keating and Bobbitt's model. Predictions from Pascual-Leone's theory were almost wholly confirmed. (RH)