IJSP Number 7, 2025

International Journal of Supervision in Psychotherapy, Number 7, 2025 Page | 67 ADDRESSING THE VARIABILITY IN TRAINING QUALITYAND ADVANCING PSYCHOTHERAPIST DEVELOPMENT THROUGH COMPETENCY-BASED CLINICAL SUPERVISION Edward P. SHAFRANSKE 1 , Carol A. FALENDER 2 1 Pepperdine University, University of California, CA, USA 2 Department of Psychology, University of California, Los Angeles, CA, USA Email: cfalende@ucla.edu Abstract: Clinical supervision is the cornerstone of professional development in the mental health field [8. 1 7. . It is "a critical if not the most critical facet of the psychotherapy training endeavor" [36. , p. 9]. Supervision ensures the quality of care and the welfare of clients, facilitates the trainee’s emerging clinical competence and professionalism, and safeguards the public and profession by serving as a gatekeeper [34. T he supervisory relationship provides a context for developing clinical competence, enhancing self-awareness, supporting metacompetence, and establishing the supervisee's emerging professional identity. In that regard, supervision has been found to have salutary effects on the supervisee [22. . However, variability exists in the quality of supervision provided. Regretfully, inadequate and harmful supervision occurs, compromising the supervisory relationship and negatively impacting patient care as well as the supervisee's professional development [17. . In this article, we discuss the role of clinical supervision during the initial training phase and throughout the ongoing development of the psychotherapist. We emphasize the benefits of implementing a competency-based approach by highlighting essential principles. Also, we suggest that supervision quality contributes to either the supervisee's experience of clinical work as a healthy involvement or may accentuate personal and professional stress and exacerbate difficulties in psychotherapy practice. Key Words: Clinical supervision, Professional development, Psychotherapy training, Professional identity CLINICAL SUPERVISION: INITIATING AND SUSTAINING PROFESSIONAL DEVELOPMENT Clinical supervision, paired with experiences working with clients, appears to have a sustaining influence throughout a clinician's career. Within clinical training, relationships and experiences gained in clinical supervision provide the formative experiences supporting professional development. Survey data suggests that engagement in clinical supervision plays a critical role in the continuous professional development for numerous