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Indiana University Bloomington

Cara Lewis

Dr. Cara Lewis

Assistant Professor


lewiscc [at]

office: PY 162 | (812)855-6952

lab: Training Research and Implementation in Psychology (TRIP Lab)


cognitive behavioral therapy; treatment outcome; predictors, moderators, and mediators of outcome; efficacy and effectiveness research; adolescent and adult depression; comorbidity; dissemination and implementation; methods and measurement of implementation research

Educational Background

  • 2003 - B.Sc.H., University of Victoria (Canada)
  • 2006 - M.S., University of Oregon
  • 2011 - Ph.D., University of Oregon
  • 2011 - Predoctoral Clinical Internship, University of Washington Medical Center

Areas of Study

  • Clinical Science

Research Topics

  • Cognitive Behavioral Therapy
  • Treatment Outcome
  • Predictors, moderators, and mediators of outcome
  • Efficacy and effectiveness research
  • Adolescent and adult depression; etiologies and maintenance factors
  • Anxiety and other comorbidities
  • Dissemination and implementation
  • Methods and measurement of implementation research

Research Summary:

My work is centered on an emerging field of research: dissemination and implementation science (DIS). Broadly, my research focuses on factors related to successful response to Cognitive Behavioral Therapy (CBT) and its dissemination and implementation in the community. Although CBT has been identified as an empirically supported treatment for depression, improving rates of recovery and identifying the core components responsible for treatment gains remains critical. My research targets mechanisms of change at the client, therapist, supervisor, and organizational level, seeking ways to maximize clinical response. To this end, I have recently opened a CBT Research and Training Clinic where I train advanced doctoral students to provide CBT to students and community members with depression and anxiety disorders. We evaluate each phase of training and treatment from multiple perspectives using client, therapist, and supervisor self-reports as well as through coding therapy, supervision and training sessions. Concurrently, I have been forging academic-community partnerships to translate findings to the settings for which they were developed. I have been looking to identify effective models for training community therapists in CBT and other individual empirically supported practice elements such as measurement-based care. I am also co-director of the NIMH-funded Seattle Implementation Research Conference (SIRC) series. Through SIRC, I spearheaded the Systematic Review and Synthesis of Implementation Instruments which is a multi-site project to improve the methodological rigor of implementation efforts.

Representative Publications

  • Lewis, C. C., Kim, H. K., & Simons, A. D. (2012). The role of early symptom trajectories and pretreatment variables in predicting treatment response to Cognitive Behavioral Therapy. Journal of Consulting and Clinical Psychology 80 (4), 525-534. DOI: 10.1037/a0029131
  • Simons, A. D., Marti, N., Rohde, P., Lewis, C. C., Curry, J., & March, J. (2012). Does homework “matter” in CBT for adolescent depression? Journal of Cognitive Psychotherapy.

  • Lewis, C. C., & Simons, A. D. (2011). A pilot study disseminating cognitive behavioral therapy for depression: therapist factors and perceptions of barriers to implementation. Administration and Policy in Mental Health, 38 (4), DOI: 10.1007/s10488-011-0348-x

  • Lewis, C. C., Brimacombe, C. A. E., & Matheson, D. H. (2011). Factors influencing patient disclosure to physicians in birth control clinics: An application of the communication privacy management theory. Health Communication, DOI: 10.1080/10410236.2011.556081

  • Simons, A. D., Padesky, C., Montemarano, J., Lewis, C. C., Murakami, J., Reid, M., Smith, D. & Beck, A. T. (2010). Training and dissemination of Cognitive Behavioral Therapy for depression: A preliminary examination of therapist competence and client outcomes. Journal of Consulting and Clinical Psychology, 78 (5), 751-756. DOI: 10.1037/a0020569

  • Lewis, C. C., Simons, A. D., Nguyen, L. J., Murakami, J. L., Reid, M., Silva, S. G., & March, J. S. (2010). The impact of childhood trauma on treatment response in the Treatment for Adolescents with Depression Study (TADS). Journal of American Academy of Child and Adolescent Psychiatry, 49 (2), 132-140. DOI: 10.1016/j.jaac.2009.10.007

  • Lewis, C. C., Simons, A. D., Silva, S. G., Rohde, P., Small, D. M., Murakami, J. L., High, R. & March, J. S. (2009). The role of readiness to change in response to treatment of adolescent depression. Journal of Consulting and Clinical Psychology, 77 (3), 422-428. DOI:10.1037/a0014154

  • Lewis, C. C. & Simons, A. D. (2009). Adolescent Depression. In R. Ingram (Ed.), International Encyclopedia of Depression (pp. 4-8) New York: Springer Publishing Company, LLC.

  • Small, D. M., Simons, A. D., Yovanoff, P., Silva, S. G., Lewis, C. C., Murakami, J. L., & March, J. S. (2008). Depressed Adolescents and comorbid psychiatric disorders: Are there differences in the presentation of depression? Journal of Abnormal Child Psychology, 36 (7), 1015-1028. DOI: 10.1007/s10802-008-9237-5