Preoperational and concrete-operational first and second graders performed on a training task and a generalization task prior to and after serving in one of five instructional groups. The instructional groups were: no-training control, specific self-instruction, specific didactic control, general self-instruction and general didactic control.…

The purpose of this study was to compare performances by Japanese and American children on the Matching Familiar Figures Test, the primary measure of cognitive tempo. Data on more than 3400 Japanese and American children (approximately half male, half female) were used. Factorial analyses of variance revealed significant age x nationality…

This paper presents a developmental study of the problem solving strategies of reflective and impulsive children. Subjects for the study were 30 nine-year-olds, 39 eleven-year-olds, and 23 thirteen-year-olds who had been classified as reflective or impulsive at ages 7, 9, and 11 and who had been followed longitudinally over a three year period.…