Introduction: The Study of Adolescent Development The Boundaries of Adolescence  A Framework for Studying Adolescence Theoretical Perspectives on Adolescence Stereotypes Versus Scientific StudyPART 1: The Fundamental Changes of Adolescence Chapter 1: Biological Transitions Chapter 2: Cognitive Transitions Chapter 3: Social TransitionsPART 2: The Contexts of Adolescence Chapter 4: Families Chapter 5: Peer Groups Chapter 6: Schools Chapter 7: Work, Leisure, and MediaPART 3: Psy