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Research Interests

Louis Castonguay's primary research interest concerns the process and outcome of different forms of psychotherapy. He studies the nature and impact of the therapist's interventions, client's experience, and therapeutic relationship. He has also been involved in the development and investigation of integrative therapies (combining cognitive-behavioral, humanistic, interpersonal, and psychodynamic procedures) for depression and generalized anxiety disorder. He is also involved in the development of Practice Research Networks, which are designed to foster researchers and clinicians collaboration in conducting naturalistic studies in psychotherapy and related fields of research.

Recent Edited Books

Principles of Therapeutic Change that Work
Edited by Louis G. Castonguay and Larry E. Beutler

Insight in Psychotherapy
Edited by Louis G. Castonguay, PhD; Clara E. Hill, PhD

Recent Publications

Castonguay, L.G. (2000).  A common factors approach to psychotherapy training. Journal of Psychotherapy Integration, 10, 263-282.

Castonguay, L.G., Boswell, J.F., ,Constantino, M.J., Goldfried, M.R., & Hill, C.E. (In press). Training Implications of Harmful Effects of Psychological Treatments. American Psychologist

Castonguay, L.G., Boswell, J.F., Zack, S., Baker, S., Boutselis, M., Chiswick, N., Damer, D., Hemmelstein, N., Jackson, J., Morford, M.,  Ragusea, S.,  Roper, G., Spayd, C., Weiszer, T., Borkovec, T.D., & Grosse Holtforth,, M., & (Revised and re-submitted for publication). Helpful and hindering events in psychotherapy: A practice research network study.

Castonguay, L.G., Muran, J.C., Angus, L., Hayes, J.H., Ladany, N., & Anderson, T. (Eds) (in press)  Bringing psychotherapy research to life: Understanding change through the work of leading clinical researchers. Legacies from the Society for Psychotherapy Research. American Psychological Association Press.

Castonguay, L., Nelson, D., Boutselis, M,.  Chiswick, N., Damer, D., Hemmelstein,  N.,  Jackson, J., Morford, M., Ragusea, R,  Roper, G.,  Spayd, C.,  Weiszer, T. & Borkovec, T., (revised and re-submitted for publication). Clinicians and/or Researchers?  A Qualitative Analysis of Therapists’ Experiences in a Practice Research Network.

Castonguay, L.G., Constantino, M.J., & Grosse Holtforth, M. (2006). The working alliance: Where are we and where should we go? Psychotherapy: Theory, Research, Practice, and Training, 43, 271-279.

Castonguay, L.G., Goldfried, M.R., Wiser, S., Raue, P.J., and Hayes, A.H. (1996). Predicting outcome in cognitive therapy for depression: A comparison of unique and common factors. Journal of Consulting and Clinical Psychology, 64, 497-504.

Castonguay, L.G., Newman, M.G., Borkovec, T.D. Grosse Holtforth, M., &  Maramba, G.G. (2005).  Cognitive-behavior assimilative integration. In J.C. Norcross and M.R. Goldfried (Eds.): The handbook of psychotherapy integration, (2nd Edition). New York: Oxford University Press.

Castonguay, L.G., Pincus, A.L., Agras, W.S., and Hines, C.E. (1998). The role of emotion in group cognitive-behavioral therapy for binge eating disorder: when things have to feel worst before they get better. Psychotherapy Research, 8, 225-238.

Castonguay, L.G., Reid, J.J., Halperin, G.S., & Goldfried, M.R. (2003).  Psychotherapy integration.  In G.Stricker and T.A. Widiger (Eds.). Comprehensive handbook of Psychology, Vol. 8: Clinical Psychology. New York: Wiley.

Castonguay, L.G., Schut, A.J., Aikins, D., Constantino, M.J, Laurenceau, J.P., Bologh, L., & Burns, D.D. (2004).  Integrative cognitive therapy: A preliminary investigation. Journal of Psychotherapy Integration, 14, 4-20.

Newman, M.G., Castonguay, L.G., Borkovec, T.D., Fisher, A.J., & Nordberg, S. (2008).  An open trial of integrative therapy for generalized anxiety disorder. Psychotherapy: Theory, Research, Practice, and Training, 45, 135-147.

Parry, G., Castonguay, L.G., Borkovec, T.D., & Wolfe, A.W. (in press) Practice research networks and psychological services research in the UK and USA.  To appear in M. Barkham & G. E Hardy (Eds) A Core Approach to Delivering Practice-Based Evidence.  New York: John Wiley

Schut, A.J., Castonguay, L.G., Bedics, J.D., Smith, T.L., Barber, J.P., Flanagan, K.M., & Yamasaki, A.S. (2005).  Therapist interpretation, patient-therapist interpersonal process, and outcome in psychodynamic psychotherapy for avoidant personality disorder.  Psychotherapy: Theory, Research, Practice, and Training. 42, 494-511.