Katie Aafjes-van Doorn

katie-aafjes-van-doorn-360x450 Throughout my career as a Clinical Psychologist I have stayed involved in clinical practice, teaching and research. After receiving my MSc in Clinical Psychology at the University of Amsterdam, the Netherlands in 2005, I earned a MSc in Psychological Research, followed by a doctorate in Clinical Psychology at University of Oxford, and gained licensure in the UK. I completed a postdoc at Access Institute, a well renowned psychoanalytic therapy clinic in San Francisco and worked as a postdoctoral researcher with Dr. Jacques Barber and his lab at Adelphi University, New York. In 2017 I became a full-time faculty at Ferkauf Graduate School of Psychology, Yeshiva University, New York. I am the co-lead of the psychodynamic track and teach courses on evidence-based psychodynamic psychotherapy, psychotherapy process, interpersonal psychotherapy and research design.

As a clinical psychologist and psychotherapy researcher I am interested in what is ‘evidence-based’ in clinical practice as it occurs in real life. I am particularly interested in the dyadic process, both with regards to matching of patient & therapist, patient & treatment, as well as more subtle matching of verbal and non-verbal communications between patient and therapist in the session.This interest in the moment-to-moment dyadic process also translates to research on therapist training, both for graduate students and for licensed clinicians, in the form of interpersonal and psychodynamic training courses and individual deliberate practice. I aim to inspire the new generation of clinicians to continue to engage in psychotherapy research. Where possible, my research endeavors have been collaborative efforts with students, clinicians and researchers. Learning from international collaborations (Sweden, Norway, Canada, Argentina, The Netherlands, UK & USA) has been especially inspiring to me and no doubt will continue to broaden my view of Clinical Psychology and Psychotherapy Research. I have published several peer reviewed papers, and co-authored an introductory book on clinical psychology, and chapters on process-outcome research. I am the Associate Editor of the prestigious journal Clinical Psychology: Science & Practice, and am serving on the board of IEDTA as chair of the research committee.

I can be reached at katie.aafjes@yu.edu or katie@aafjesvandoorn.com.


Aafjes-van Doorn, K., Lilliengren, P., Cooper, A., Macdonald, J., & Falkenstrom, F. (in press). Patients’ affective processes in initial EDT sessions. Psychotherapy.

Silberschatz, G. & Aafjes-van Doorn, K. (in press). Pathogenic beliefs mediate the relationship between adverse parenting and psychopathology. Journal of Aggression, Maltreatment & Trauma.

 Etchebarne, I., Garay, C. & Aafjes-van Doorn, K. (in press). Psychotherapy for Personal Growth? A Comparison of South and North American Practices. International Psychology Bulletin.

 Snyder, J. & Aafjes-van Doorn, K. (2016). Utilizing Measure-Based Feedback in Control-Mastery Theory: A Clinical Error.Psychotherapy, (53), 291-296.

 Aafjes-van Doorn, K., Macdonald, J., Stein, M., Cooper, A. M., & Tucker, S. (2014). Experiential Dynamic Therapy: A Preliminary Investigation Into the Effectiveness and Process of the Extended Initial Session. Journal of Clinical Psychology, 70(10), 914-923.

Van Doorn, K., McManus, F., & Yiend, J. (2012). An analysis of matching cognitive-behavior therapy techniques to learning styles.Journal of Behavior Therapy and Experimental Psychiatry. 43, 1039-1044.

McManus, F., Van Doorn, K., & Yiend, J. (2011). Examining the effects of thought records and behavioral experiments in instigating belief change. Journal of Behavior Therapy and Experimental Psychiatry, 43, 540-547.

Book Chapters:

Llewelyn, S., Macdonald, J. & Aafjes-van Doorn, K. (2016). Process-Outcome Studies. In (Ed. J. Norcross) Handbook of Clinical Psychology, American Psychological Association.

Llewelyn, S., Hardy, G. & Aafjes-van Doorn, K. (2015) Chapter 11. Psychologists as researchers. In J. Hall (Ed.) Clinical psychology in Britain: Historical perspectives, UK: British Psychological Society.


 Llewelyn, S., & Aafjes-van Doorn, K. (in press). A very short introduction to Clinical Psychology’. ‘Very Short Introduction’ series. UK: Oxford University Press.

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