The 2-volume APA Handbook of Sport and Exercise Psychology presents new areas of research and links theory with emerging practice to reflect the latest developments in this constantly changing field. The 77 chapters provide extensive coverage of conceptual frameworks and models, empirical findings, and practical interventions. Additionally, many chapters discuss topics not addressed in other publications, such as attention deficit/hyperactivity disorder, sleep disorders, life-span engagement in sport and physical activity, and professional ethics and governance.