Social Class, Development, and Differences in Reinforcer Effectiveness

The variety of stimuli that serve as reinforcers in our day-to day lives is virtually endless. Yet, when it comes to instructing or experimenting with lower-class children, reinforcement fre quently narrows to a class of material objects that are presumed to be most effective with this group. Candies, cookies, toys, tokens, trinkets, and money have been used in programs to improve the academic and social behavior of lower-class children