Describes a classroom demonstration using differential reinforcement to shape student participation in a small psychology laboratory. Concludes that the technique was useful for illustrating how reinforcers shape behavior. Suggests that the demonstration facilitated understanding of operant conditioning procedures and encouraged more equitable…

Reports on the misconceptions held about behavior analysis among students in two advanced undergraduate courses in behavior modification. Finds that only 3 of 13 common misconceptions were held widely. Reveals that these three misconceptions were resistant to change. (CFR)

Describes a partnership between Zoo Atlanta and the Georgia Institute of Technology in teaching the principles of operant conditioning to students in an experimental psychology class. Maintains that the positive training techniques used in zoos are models of applied operant conditioning. Includes a discussion of zoo training goals. (MJP)

Briefly reviews the research literature concerning the overjustification effect. The effect describes the situation where positive reinforcement reduces one's intrinsic motivation for a behavior, thereby decreasing the probability that the behavior will be repeated. Notes the limitations of this explanation and recommends a broader representation…