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Seventy‐six students in a college‐level course in human development were divided into an experimental and a control group of approximately equal size. Both groups were given a pretest composed of fill‐in and multiple‐choice items. The control group was exposed to conventional educational practices while the experimental group was treated in a manner similar to that described by Johnston and Pennypacker (1971), performing only on fill‐in items. Post‐test results showed significantly greater changes in the experimental group, regardless of the type of test item, although the difference was greater in the case of the fill‐in items. The results are discussed in terms of their implications for both future research and tactics in the development of improved teaching technologies.

Contingency management systems in university courses have sometimes assigned the role of reinforcing stimulus to lectures and demonstrations. Attending a lecture was made contingent upon having previously finished certain course assignments. The present paper investigated some variables that control student attendance at lectures. Attendance remained high throughout each course at those class meetings where quizzes contributing to course grades were given or where impending quizzes were discussed. Attendance at lectures over the reading assignments or over material unrelated to course quizzes rapidly declined. When students were given course credit for attending these lectures, or when the lectures included information for future quizzes, attendance increased. When attending these lectures was made contingent upon having completed certain assignments the prior week, no increase in assignment completion was noted and the attendance at the lectures decreased even further. All lectures were given during one class meeting each week. Attendance at the other class meetings during the week remained stable.

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There is a need for a portable means of signalling appropriate classroom behavior that the teacher can carry with her as she moves about the room. An inexpensive wireless switch, adapted for classroom use, was used to turn on a clock when all children were attending to their work. When a movie was made contingent on accumulating a specific number of minutes on the clock, class‐attending increased. Throughout these conditions, the records of class attending made by an independent observer with a stopwatch correlated highly with the remote controlled clock.

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