This brief examines student psychological well-being, an important issue of growing interest in U.S. higher education. Extensive research focused on student involvement in college suggested that quality involvement leads to higher levels of student learning and development. This study for psychological well-being was measured using the Ryff Scales of Psychological Well-Being (SPWB), which is operationalized as "subjective, social, and psychological dimensions as well as health-related behaviors". The findings from this study suggested that student involvement has a significant, positive link with end-of-fourth year psychological well-being that persists even in the presence of controls for precollege psychological well-being and a broad array of other potential confounding variables. Students should be encouraged to get involved and engaged on their campuses, as this study suggests, the benefits to them can reach their personal development of psychological well-being and potentially indirectly benefit their academic performance and persistence in college.