This study investigates the diversity of early prosocial behavior by examining the ability of ninety-five 2- to 4-year-olds to provide aid to an adult experimenter displaying instrumental need, emotional distress, and material desire. Children provided appropriate aid in response to each of these cues with high consistency over multiple trials. In…

THE PRESCHOOL IS A COMMUNITY OF REINFORCEMENT CONTINGENCIES WHICH WILL SHAPE AND MAINTAIN AN INCREASING REPERTOIRE OF SOCIAL BEHAVIOR AND WILL PUT THAT BEHAVIOR UNDER THE CONTROL OF PEERS. THIS STATEMENT WAS DEMONSTRATED IN A PROGRAM WHICH ANALYZED PROBLEM BEHAVIORS OF PRESCHOOL CHILDREN. IN GENERAL, THE PROGRAM CONSISTED OF TWO PROCESSES--(1)…

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…

Partial and methodologically questionable replications of the Luria experiments on the child's verbal regulation of his motor behavior have led to results and conclusions contradictory to Luria's findings. An error in the methodology of two of these replications is discussed as the reason for a new investigation of Luria's hypothesis. Several…