The case study method of teaching uses real-world narratives to teach concepts and content. This method of teaching encourages active learning, which has been shown to have a positive effect on student performance in many disciplines including science. Although more females than males pursue a postsecondary degree, more males than females pursue degrees in the STEM (science, technology, engineering, and mathematics) disciplines, and males also outperform females in the STEM disciplines as well. Because it is well-known that perception affects performance, the goal of this study was to determine the relationship between gender, perception, and performance.