This text is intended for individuals studying or involved in college student affairs work and focuses on theory and research concerning the cognitive, affective, and behavioral development of today's college students. Part 1 examines the concept of student development in a chapter providing an historical context and a chapter on the role and uses of student development theory. The five chapters of Part 2 examine psychosocial and identity development theories, including Chickering's theory of identity development; Josselson's theory of identity development in women; racial and ethnic identity development; gay, lesbian, and bisexual identity development; and Schlossberg's transition theory. Part 3 examines cognitive-structural theories in four chapters on: Perry's theory of intellectual and ethical development; later cognitive-structural theories; Kohlberg's theory of moral development; and Gilligan's theory of women's moral development. Part 4 presents three typology theories: Kolb's theory of experiential learning, Holland's theory of vocational personalities and environments, and the Myers-Briggs adaptation of Jung's theory of personality type. Part 5 provides a chapter on integrating theoretical approaches to create intentional developmental environments and a concluding chapter which examines the "state of the art" of student developmental theory. (Contains approximately 750 references.)(DB)