This document discusses several theories around the development of gender roles in children. According to psychoanalytic theory, psychoanalytical complexes influence gender identity development. Behavioral and social learning theories posit that children learn gender roles through reinforcement and imitation of same-sex peers and adults. Cognitive learning theory suggests children progress through stages of gender identity, stability, and constancy from ages 2 through 5. Gender roles are typically adopted between 15-36 months when children experience gender intensification during adolescence. Observable behaviors that may indicate changes in gender identity include preference for opposite gender activities, dress, and peer groups.