The current study evaluated changes in undergraduate nursing students' knowledge and self-efficacy in motivational interviewing. Fourth-year undergraduate nursing students completed a hybrid, online curriculum. Changes in knowledge and self-efficacy were assessed using a pretest/posttest design. Repeated measures analysis of variance was used to determine differences between knowledge and self-efficacy mean scores. Of the 144 students who participated in the study, 88.2% were female, 96.5% were non-Hispanic/Latino, 88.9% were White, and mean age was 21.3 years. There were significant increases in knowledge and self-efficacy mean scores between pre-survey and post-survey 1 and 2. There were no differences between post-surveys 1 and 2 scores. A hybrid, online curriculum using asynchronous modules and synchronous simulation training can facilitate nursing students' learning experiences and enhance knowledge and self-efficacy about motivational interviewing. [Journal of Psychosocial Nursing and Mental Health Services, 61(5), 17-24.].