The current study investigated the effectiveness of the In Our Own Voice (IOOV) mental health education program in improving knowledge and attitudes about mental illnesses. Undergraduate participants (N = 114) completed three pre-test measures of knowledge and attitudes, attended either an In Our Own Voice presentation or a control presentation about psychology careers, and repeated the three measures following the presentation. Results indicated that the IOOV group showed significant positive change across time, as well as significantly greater improvement than a control group in their knowledge and attitude scores on all measures. These findings support the effectiveness of the IOOV program.