To test the inversion of intensity interpretation based on negative relations between newborn and pre-school intensity behaviors, 106 normal children were examined at the neonatal and pre-school periods. Interpretations of intensity behaviors at both periods and their longitudinal relations are discussed. (Author/SB)

Erikson found sex differences in the play configurations of pre-adolescents who were given a variety of toys and blocks. Wamback, Cramer and Hogan's replications of Erikson's work revealed that sex differences of this type lack sensitivity to inter-school variation among subjects, time or locality. Two possible alternatives to Erikson's hypothesis…

This investigation sought to compare male and female differences in play activities between 21 blind subjects and 21 matched control subjects in second through eighth grade. (Author)

Early personality and environmental characteristics that predict later problematic aggression and depression in children were investigated longitudinally. A developmental psychopathology approach was taken. (This approach assumes that patterns of adaptation and maladaptation in development can best be understood when explored simultaneously and…