The present study was concerned with investigating children's generalized locus of control of reinforcement and its possible relationship to the demographic variables of birth order and family size. The sample consisted of 93 school children in Grades 6, 7, and 8. The analysis of data was by a 2 x 3 factorial design. Results indicated no significant differences in the generalized locus of control orientations of first-born, intermediate-born, and youngest children. Results also indicated that children of these different birth order positions from small families and from large families did not differ significantly in their generalized locus of control orientation. A correlational study of the data showed that the children's locus of control orientations were unrelated to sex differences.

This study investigates (1) whether infants in a day-care setting exhibit sexual preferences in the choice of a playmate, and (2) whether males exhibit more overt acts in play than do females. Eight male and eight female infants, attending a day-care center, paired by age (ages twelve to twenty-four months), were selected as subjects. Each of the sixteen children was observed for a ten-minute period on four separate days, over a two-week period, a total of forty minutes' observation time per child. No significant differences were found between male and female infants involving the preference of the sex of a playmate, or between male and female overt behaviors.