Teachers at two elementary schools conducted behavior modification projects in their classrooms to verify the existence of reciprocity between the amount of reinforcement given and the amount received. Their findings, following approximately four weeks, suggest that such a relationship exists. (Author)

The article suggests that retarded behavior is maintained by certain events in the environment and their relationship to an individual's behavior. Maintenance of these behaviors is attributed to positive reinforcement, avoidance behavior, and contingency schedules. Several examples of the maintenance effects of each of these paradigms are given.…

Case study assessed effects of rearrangement of desks in an open classroom on incidents of disruptive behavior occurring in that classroom. Results revealed that alteration of the physical environment produced positive responses from students through reduction of maladaptive behavior occurrences. (Author/MH)