Recounts a study designed to determine the age at which sex differences first begin to appear and relates various aspects of children's behavior to the level of humor responsiveness. (MH)

Reports on three studies designed (1) to determine whether the relationship between age and exploratory behavior varies as a function of the measure used, and (2) to examine any sex differences in exploratory behavior. (SB)

The results of this study support the theory that spatial behavior norms are learned early in life. Results show that Black children stand closer than Whites in the primary school years and also stand less directly. White female children are most distant and Black female children are closest in space range. (WI)

Uses evidence from recent brain research to prove that many behavioral differences between men and women are based on biologically inherent differences in brain functioning. (CM)

Applies a suicide trajectory model to rates of suicide and attempted suicide to explain commonalities and age differences in risk factors affecting suicide across the life span. (HTH)

Boys and girls (10-11 years) responded in a speed task faster in the presence than absence of an audience. Children were faster with the same-than opposite-sexed audiences. The results were discussed in terms of same-sex competitive motives, sex-stereotypes, and opposite-sex distractability. (Author)

Baseline assessments of 64 girls and 158 boys (ages 4-7 years) diagnosed with oppositional defiant disorder (ODD) or early-onset conduct problems, or both, were examined for gender-linked differences in behavior symptoms. Results indicated significant gender differences in behavioral symptoms according to independent home observations. Discusses…

This ethnographic study of a self-contained classroom of eight-, nine-, and ten-year-olds examined sexual differences in peer interactions. Within the observed classroom, males and females established separate social systems which had only limited contact with each other. Males were found to interact with significantly more classmates than…

This paper reviews a number of studies that have tested Fiedler's (1964) Contingency Model and Least Preferred Co-Worker Scale of leadership style and effectiveness, focusing on studies that have examined the characteristics and stability of this scale across age, ethnicity, and gender. The Contingency Model is based on three determinants of…