This article presents a scheme which would allow investigators to shift back and forth among model assumptions while maintaining the integrity of separate models of development. The scheme is illustrated in a study of 16 nursery school children's personal-social behaviors within 2 contexts during 2 time periods. (Author/JMB)

An adult model (teacher) displayed a preference for the doll least selected by the children in her classroom. Indications were that children in the experimental classes imitated the preference of their teacher in selecting their favorite doll at the completion of the experimental period. (Author/CB)

This document includes three papers on long-term investigations of the population characteristics of disadvantaged preschool children. Myles I. Friedman, et.al., approached the problem of curriculum construction by describing and identifying readiness behaviors in children. Twenty-two tests were administered to 1600 4- to 6-year-old advantaged and…

The project consisted of several independent sub-experiments focusing on factors that affect moral reasoning among young children. Preschool children, following brief training programs, reasoned more maturely about intentionality, punishment, sanctions following behavior, relativity, and immanent justice. Two methods of training were compared. In…

Evaluated a conceptual model that links temperament, emotional knowledge, and family expressiveness to preschoolers' emotional regulation ability by giving "disappointing" prizes after a task. Subjects were 82 preschoolers. Found that children's positive displays when presented the disappointing prize were inversely related to the…

Human development from about ages 2 to 5 is presented in terms of the history of a child conceptualized in terms of stimulus and response functions and his interactions in current situations which consist of organismic, physical, and social conditions. The concepts describing the changes that occur during this developmental period, such as…