Multilevel modeling is used to examine the impact of teamwork interest and group extraversion on group satisfaction. Participants included 206 undergraduates in 65 groups who were surveyed at the beginning and end of a requisite term-length group project for an upper-division university course. We hypothesized that teamwork interest and both extraversion dispersion and higher mean extraversion would predict satisfaction with the group. Results indicated both teamwork interest and mean extraversion were not a predictor of satisfaction. Contrary to the hypothesis, greater extraversion dispersion and the interaction between teamwork interest and extraversion dispersion predicted less satisfaction. Extraversion dispersion was a better predictor of student satisfaction when individuals were more interested in teamwork. Additionally, extraversion dispersion may be a suppressor variable for teamwork interest. These results have implications for instructors facilitating group work and ensuring students have a positive group work experience.