By the turn of the 20th century, research had begun dealing with the subject of sport psychology in America. In the early 1900's, Coleman Griffin, the father of sport psychology, led the way in researching sport psychology. It was not until the 1960's that research in this field became popular in Great Britain. In 1967, in both America and Great Britain, national associations of sport psychology were formed by groups of interested physical educators and sport theorists. Two of these groups which have orgainzed conferences are the British Society of Sport Psychology and the North American Society for the Psychology of Sport and Physical Activity. Very few conferences have been sponsored by psychology departments of universities or even universities themselves. The conferences, as well as the associations, have helped to bring professionals together, but more important, have helped sponsor cross-disciplinary study and inquiry. Many noteworthy books have been produced from the conferences. Four major areas of emphasis which suggest the developmental trends of sport psychology include socio-cultural psychology, sport psychology, psychological growth and development, and human performance. Contemporary developments in America and Great Britain include: (1) a longitudinal approach to personality work, looking at factors in the personality setting from more precise state approaches; (2) a social psychological approach to studying sport; and (3) a serious examination of competition from all angles. There no longer exists an American version of sport psychology distinguishable from a British version. (SK)