Although there is a wealth of information proclaiming the physiological and psychological benefits of physical activity, individuals with developmental handicaps are often faced with barriers that exclude them from many types of activities and programs. The purpose of this study is to examine those barriers which are not a result of their own limitations. Specifically, we measure attitudes towards people with developmental handicaps in two sub-samples: a) 127 Ontario Special Olympics: Provincial Winter Games volunteers; and b) 97 London, Ontario residents. Results are combined with earlier research which examines attitudes of university student volunteers and the general university student population. Comparisons between sub-samples are presented, along with implication for Ontario Special Olympics an other volunteer-based organizations. Profiles of each subsample will assist these organizations in developing and streamlining their recruitment and training strategies. Although there is a wealth of information proclaiming the physiological and psychological benefits of physical activity, individuals with developmental handicaps are often faced with barriers that exclude them from many types of activities and programs. The purpose of this study is to examine those barriers which are not a result of their own limitations. Specifically, we measure attitudes towards people with developmental handicaps in two sub-samples: a) 127 Ontario Special Olympics: Provincial Winter Games volunteers; and b) 97 London, Ontario residents. Results are combined with earlier research which examines attitudes of university student volunteers and the general university student population. Comparisons between sub-samples are presented, along with implication for Ontario Special Olympics an other volunteer-based organizations. Profiles of each subsample will assist these organizations in developing and streamlining their recruitment and training strategies