This text presents important advances in the psychological study of gender differences and similarities across the lifespan. Diverse theoretical approaches and research traditions are represented, including biological, social-cognitive, psychoanalytic, and self psychological perspectives. Covered are such topics as the organization and activational effects of sex hormones; evolutionary influences on sex-role behaviors; processes of gender development and socialization; gender inequality and stereotypes; crosscultural issues; and more. New to This Edition: Coverage of additional topics. Most...