This paper answers five questions about a specific popular example in the study of behaviorism in the classroom: the "Marble Jar." The author discusses the pros and cons of using positive-reinforcement conditioning methods on students in order to get them to behave well. Also discussed is the contrast between the use of concrete rewards (ice cream, a field trip) for younger students and the use of abstract rewards (respect, the chance to get into a good college) for older students.
