The purpose of this study was to examine the effects of an educational program with interactive videodisc systems (IVS) in improving affective dispositions toward critical thinking for RN-BSN students in Taiwan. A pre-/post-test quasi-experimental design was used. The IVS program was provided. A sample of 126 students was obtained from one nursing college. The California Critical Thinking Dispositions Inventory was used. The results showed significant differences in all dispositions toward critical thinking, except inquisitiveness, between before and after the IVS program. With the IVS program, the subjects are educated in situations simulating real scenarios prior to clinical practice so that they not only have opportunities to learn how to approach the problem, formulate thinking, participate in discussions, and solve the problem, but they also are willing to keep thinking critically during clinical practice.