Previous studies have shown that American mothers, in contrast to Japanese, do more lively chatting to their babies, and that as a result, the American babies have a generally higher level of vocalization and, particularly, they respond with greater amounts of happy vocalization and gross motor activity than do Japanese babies. Thus, it appears…

This paper, part of a long term study, reports the effect of a modified Montessori preschool experience on cognitive development, school-related behaviors, and social interactions and perceptions of disadvantaged children. Each of thirty-five disadvantaged Negro children (31 in nursery classes and 4 in elementary classes) was pair-matched with a…

This document presents some of the major challenges facing Developmental Psychologists. Research revealed that middle class children tended to respond in classification tasks to objects and pictures as equivalents, whereas low class black children tended not to do so. The reason for this was investigated. This investigation of the course of…