The following presumptions guide the continuous development and operations of the Sport Psychology Concentration at GSAPP: Sport psychology can be considered as possessing a distinct disciplinary basis in applied and professional psychology. As such, a demarcated body of knowledge exists that includes relevant theory, concepts, methods of investigation, and empirical research and practical regulations that serve to represent the field. Sport psychology is an increasingly recognizable aspect of the practice of professional psychology. In this more specific respect, the practice of sport psychology involves assessment, intervention, and progress monitoring functions, among other functions, that relate to the development and enhancement of its clients: athletes, coaches, parents, and others. The term sport psychologist may be appropriately used by any individual who has obtained a doctoral degree in a legitimate domain of professional psychology from an accredited institution and who has devoted planned and thoughtful time to concentrated study and supervised professional experiences in sport psychology, as reflected by a course of studies in a graduate school of professional psychology or within a department of psychology that encompasses doctoral students. Sport psychology can be a viable aspect of the practices of qualified and properly trained professional psychologists.