Studied 49 3 and 4 year olds in an examination of the effect of type of reward agent on children's discounting. Findings indicated that the combination of a negative valence and a particular social role accounted for the discounting of intrinsic interest. This suggests that social knowledge guides the application of the discounting schema. (SH)

Describes a study of some conditions which facilitate the acquisition of behavioral chains by young children. Three experiments are presented which concern: (1) overt responses to the internal components of the chain; (2) use of an aversive consequence; and (3) added instructions at the beginning of training. (Author/SDH)

Presents a study which investigated the sources of control over behavior: internal or environmental. Results are discussed in terms of the Theory of Propositional Control. (DP)

Age-related differences in imitation and recall were studied in children ranging from preschool to college age. Results indicated that children were more sensitive to vicarious consequences than adults. (ST)

Results indicated that different types of play environment strongly influence preschool children's types of social play and play group size. Differences in cognitive level and social egocentrism influenced the choice of play environment. (Author/DB)