D’Aniello, C., & Fife, S. T. (2020, April). A 20-Year review of common factors research in marriage and family therapy: A mixed method content analysis. Journal of Marital and Family Therapy, 1-18. This source offers insight on common factors and assumptions related to MFT practice, training, and supervision.
Bartle, D., & Trevis, A. (2015). An evaluation of group supervision in a specialist provision supporting young people with mental health needs: A social constructionist perspective. Educational & Child Psychology, 32(3), 78-89. This article explores core competencies in a social constructionist supervisory setting.
Lambie, G. W., Mullen, P. R., Swank, J. M., & Blount, A. (2018). The Counseling Competencies Scale: Validation and refinement. Measurement & Evaluation in Counseling & Development, 51(1), 1-15. This article provides ways to measure therapeutic skills.