Argues that behavioral differentiation of the sexes is minimal when children are observed or tested individually. Sex differences emerge primarily in social situations resulting in social styles that place females at a disadvantage in interactions with males. The role of the nuclear family in the development of these styles is discussed. (FMW)

Describes the use of four-person task assessments which were designed as a means of examining children's social interaction outside the classroom setting. Provides information concerning tasks and information obtained. Concludes that these tasks can be repeated over a period of years in order to evaluate the growth and maturity of subjects. (KO)