The purpose was to test of the utility of role conflict and expansionist theories in explaining the work-family interface using psychometrically sound instruments. Participants (n = 74) responded to measures of work-family conflict, work-related stress, and role quality. In support of the expansionist theory, results indicated that the quality of the life roles was a better predictor of both work-family conflict and work-related stress than was the number of life roles. For both, results indicated that as quality of the work role increased, work-family conflict and work-related stress decreased. The implications for the research on the work-family life interface and attracting and retaining the most qualified school psychologists are discussed.