One of the tasks was to teach the younger and unskilled coaches the psychological principles that were used by the more successful and experienced coaches.
The other task was to adapt psychological knowledge to sport, and the last task was to use the scientific method and the laboratory for the purpose of discovering new facts and principles that can aid other professionals in the domain.
He then transmitted his findings to coaches, and helped advance the knowledge of psychology and physiology on sports performance.
Griffith also published two major works during this time: The Psychology of Coaching (1926) and The Psychology of Athletics (1928).
Research by ornithologists Lashley and Watson on the learning curve for novice archers provided a robust template for future habit formation research, as they argued that humans would have higher levels of motivation to achieve in a task like archery compared to a mundane task.
Researchers Albert Johanson and Joseph Holmes tested baseball player Babe Ruth in 1921, as reported by sportswriter Hugh S. Ruth's swing speed, his breathing right before hitting a baseball, his coordination and rapidity of wrist movement, and his reaction time were all measured, with the researchers concluding that Ruth's talent could be attributed in part to motor skills and reflexes that were well above those of the average person.The lab measured physical abilities and aptitude in sport, and in 1921, Schulte published Body and Mind in Sport.In Russia, sport psychology experiments began as early as 1925 at institutes of physical culture in Moscow and Leningrad, and formal sport psychology departments were formed around 1930.Wrigley offered a full-time position as a sport psychologist to Griffith but he declined the offer to focus on his son's high school education.Coleman Griffith made numerous contributions to the field of sport psychology, but most notable was his belief that field studies (such as athlete and coach interviews) could provide a more thorough understanding of how psychological principles play out in competitive situations.Coleman Griffith worked as an American professor of educational psychology at the University of Illinois where he first performed comprehensive research and applied sport psychology.He performed causal studies on vision and attention of basketball and soccer players, and was interested in their reaction times, muscular tension and relaxation, and mental awareness.In 1964, he wrote a paper "Physical Education: An Academic Discipline", that helped further advance sport psychology, and began to give it its scholarly and scientific shape.Additionally, he published over 120 articles, was a board member of various journals, and received many awards and acclaims for his contributions.However, it was a bit later during the Cold War period (1946–1989) that numerous sport science programs were formed, due to the military competitiveness between the Soviet Union and the United States, and as a result of attempts to increase the Olympic medal numbers The Americans felt that their sport performances were inadequate and very disappointing compared to the ones of the Soviets, so this led them to invest more in the methods that could ameliorate their athletes performance, and made them have a greater interest on the subject.The advancement of sports psychology was more deliberate in the Soviet Union and the Eastern countries, due to the creation of sports institutes where sports psychologists played an important role. Scripture conducted a range of behavioral experiments, including measuring the reaction time of runners, thought time in school children, and the accuracy of an orchestra conductor's baton.