The ability of aversive conditioning and contingency management to control smoking was compared. Although contingency management was more effective in the short run, at a six-month follow-up treatment effects were no longer evident. (SE)

This paper describes a study which compared the results of treating out-patient middle-income problem drinkers with: (1) a multi-component positive reinforcement procedure emphasizing moderation; or (2) traditional group encounter therapy emphasizing abstinence. Results suggested that behavioral treatment was more effective than traditional…

Student withdrawals were compared to course completers in two variants of a contingency-managed lecture (CML) course and a personalized instruction (PI) course. Within both CML sections, withdrawals performed 10-25% worse on unit quizzes and 20-30% worse on review exams than did peers who completed the course. Within PI, withdrawals had a retake…