Objective: This article describes the validation of the Religious/Spiritually Integrated Process Assessment Scale (RSIPAS) across five helping professions. The RSIPAS was originally developed to measure clinical social workers' self-efficacy, attitudes, perceived feasibility, behaviors, and overall orientation toward integrating clients' religion and spirituality in practice. Method: The current study examines the internal consistency and criterion, discriminant, convergent, and factorial validity of this instrument with a sample of clinical social workers, psychologists, nurses, counselors, and marriage and family therapists in Texas (N = 550). Results: Findings support the reliability (a = 0.95) and various forms of validity, with an improved fit in the factor structure among this more diverse sample. Conclusions: The RSIPAS may be used among these five helping professions to identify training needs or evaluate training efforts related to the integration of clients' religious or spiritual beliefs in mental and behavioral health treatment.