Gender identity—the internal sense of being male, female, or another gender—and gender typing—the acquisition of culturally expected roles—develop through the interaction of biological, cognitive, and learning influences. No single factor can fully explain these processes.

Biological influences provide a foundation. Chromosomal sex (XX or XY) determines gonadal development and subsequent production of hormones such as androgens and estrogens. Prenatal hormone exposure shapes brain structures, influencing behavioural tendencies. Research on Congenital Adrenal Hyperplasia (CAH) shows that girls exposed to high prenatal androgens often prefer more masculine play, suggesting hormonal effects on gendered behaviour. Evolutionary psychology also argues that gender differences may reflect adaptive strategies, though critics caution against biological determinism.

Cognitive influences emphasize children’s active role. According to Kohlberg’s Cognitive-Developmental Theory, children pass through stages—gender identity, stability, and constancy. Once constancy is established, they are intrinsically motivated to behave according to their gender. Gender Schema Theory further highlights that children build mental frameworks, or schemas, which filter and guide their perceptions, memory, and behaviour. These schemas help explain why children selectively attend to and imitate gender-consistent behaviours.

Learning influences stress environmental shaping. Bandura’s Social Learning Theory highlights observation, imitation, and reinforcement. Children model behaviours from parents, peers, and media, while rewards and punishments guide their enactment of gender roles. For example, boys praised for rough play and girls discouraged from it internalize culturally defined norms. Media depictions, often reinforcing stereotypes, further strengthen gender typing.

In sum, biology may predispose, cognition structures understanding, and learning provides reinforcement. Gender identity and typing thus emerge from a dynamic interplay of innate factors, mental constructions, and socio-cultural influences, making the process both universal and context-dependent.