The effects of positive consequences on appropriate behavior at the beginning of a classroom experience were examined during an academic program for students with behavioral and academic difficulties. The results showed that the use of reprimands alone was associated with high levels of on-task behaviors during the initial days of the class. The addition of praise produced no change in the rate of on-task behaviors or the level of academic performance. The withdrawal of all consequences caused significant decreases in on-task behavior and academic productivity. The subsequent use of praise alone led to an initial increase followed by a dramatic decline in on-task performance, resulting in no change in the average rate of on-task behavior relative to the use of no consequences. These results are consistent with previous findings indicating the importance of reprimands for maintaining appropriate classroom behavior. Speculations regarding potential roles of praise are briefly discussed.
