The main objective of this experiment was to find what relationships threre are between sportsmanship, motivation and athletic aggression. There we three preset propositions that they anticipated for their theory: (a) self-determined sport motivation will be positively predictive of sportspersonship orientations, (b) sportspersonship orientations will mediate the relationship between self-determined sport motivation and athletic aggression, and (c) sportspersonship orientations will impact athletic aggression in two distinctive ways. A positive relationship between sports orientation and instrumental aggression is expected. Yet, a negative relationship is anticipated between the orientations and the reactive aggression.

To test their hypothesis they experiment with over 200 men in for two different studies. For the first study they tested 102 male physical education students and for the second study they tested 102 male athletes. For study one and study two the males completed the same set of scales: Sport Motivation Scale, Multidimensional Sportspersonship Orientations Scale, and Bredemeier's...