The document outlines biological, social, and cognitive influences on gender development from childhood through adolescence. It discusses how sex hormones, social roles, parenting styles, and cognitive gender schemas shape whether children exhibit more masculine or feminine traits based on their culture's expectations. While some average differences exist between males and females, there is also considerable overlap, and both biological and sociocultural factors contribute to outcomes. Gender stereotyping increases in early childhood but declines again by late adolescence.