Dr. Fetterman's research interests lie at the intersection of social, personality, and cognitive psychology. Utilizing methods from each of these fields, he investigates the cognitive processes involved in how people process social information. The major areas he focuses on here are metaphor, nostalgia, mental imagery, and the combination of these topics. He also investigates the causes and consequences of wrongness admission, in relation to reputation and emotion. Aside from these two main programs of research, he likes to dive into a variety of interesting topics. A current project is focused on dual identity and educational outcomes and reactions to political policy. Additional and previous topics include doomsday preppers, political ideology, evolution, embodiment, religion and atheism, narcissism, cooperation/competition, prosocial behavior, social power, rationality, meta-science, and linguistic analysis.