This study examined the relationship of the serve-specific core self-evaluation scale (SS-CSES) with serve performance of inter-collegiate volleyball athletes. The SSCSES is a modified version of the core self-evaluations scale (CSE). It was hypothesized that SS-CSES would be related to serve performance, that SS-CSE would be more related to serve performance than CSE, and that SS-CSE would have incremental validity over CSE when predicting serve performance. Responses to the two scales and selfassessments of server performance were collected online through self-report questionnaire. Additionally, NCAA serve statistics were collected by the researchers. Results indicated that SS-CSE was a stronger predictor of performance than CSE, and all other hypotheses were supported.