Randomly selected college students from 11 psychology classes made wri
tten commitments to study for an exam. Students in the commitment cond
ition reported significantly more study time than controls and also pe
rformed significantly better on the exam. The effect was strong across
all upper division classes, but no effect was found on either reporte
d study time or exam performance for students in introductory psycholo
gy classes. The discussion includes several implications of these find
ings for the student affairs practitioner as well as some suggestions
for future research.