Basic ideas of reinforcement may be more easily applied in the classroom if three common teacher errors: noncontingent reinforcement, ambiguity of rules, and restriction of earnings, are avoided. (Author/SDH)

Two kindergarten boys with behavior problems were given "happy faces" at the beginning of each period, which were removed contingent on inappropriate behavior. Retention of a number of "happy faces" earned a large "happy face," redeemable for privileges at home. Low rates of inappropriate behavior were observed while the system was in effect.…

Eleven British students (ages 16-19) with severe learning difficulties were presented with microcomputer switches which activated various visual and auditory contingencies. Students were able to indicate a preference for specific contingencies when placed in a carefully designed situation. Visual rewards did not generate strong preferences. (JDD)

Effects of self-monitoring alone and in combination with external contingent rewards on sight word acquisition were compared across two groups of four learning-disabled elementary students. Both treatments were found to increase sight word vocabulary, but contingent reward did not enhance the reactivity of self-monitoring for most students.…