1. Effects of different living settings on the performance of mentally retarded individuals;Alexander;American Journal of Mental Deficiency,1985
2. The role of frustrative nonreward in continuous reward situations;Amsel;Psychological Bulletin,1958
3. Frustrative nonreward in partial reinforcement and discrimination learning;Amsel;Psychological Review,1962
4. A study of the reactions to “frustration” of a group of mentally retarded children as measured by the Rosenzweig Picture Frustration Study;Angelino;Psychological Newsletter,1956
5. Social learning theory.;Bandura,1977