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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

  • Implementation science
  • Methods and measurement of implementation research
  • Cognitive Behavioral Therapy
  • Process Research: Predictors, moderators, and mediators of outcome
  • Adolescent and adult depression
  • Anxiety and other comorbidities

Research Summary:

My work is centered on a new field of research: dissemination and implementation science (DIS). Broadly, my research focuses on factors and processes 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 direct 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 established academic-community partnerships to support the integration of empirically supported interventions in the settings for which they were developed. I have been investigating effective models for training community therapists in CBT and other individual empirically supported practice elements such as measurement-based care, including social psychology informed group-based interventions as well as the use of health information technologies such as measurement feedback systems. In collaboration with the nation's largest behavioral health service provider, Centerstone, I serve as principal investigator of an R01 focused on comparing standardized versus tailored approaches to implementing measurement based care. I am also President of the NIMH-funded Society for Implementation Research Collaboration (SIRC) and co-director of the SIRC conference series. Through SIRC, I serve as principal investigator on a second R01 focused on developing measures and methods to advance implementation science.

Representative Publications

  • Lewis, C. C., Scott, K. S., Kroenke, K., Marriott, B., Mendel, P., Mathes, K., Rutkowski, D., & Simon, G. (accepted). Implementing measurement based care in community mental health: a protocol for a cluster randomized dynamic trial of standardized versus tailored implementation. Implementation Science.
  • Powell, B., Beidas, R., Lewis, C. C., Aarons, G., Proctor, E. K., Mandell, D., & Mitchell, C. (in press). Methods to Improve the Selection and Tailoring of Implementation Strategies. Journal of Behavioral Health Services & Research.
  • Lewis, C. C.., Fischer, S.*, Weiner, B. J., Stanick, C. F., Kim, M., & Martinez, R. G.* (accepted). Outcomes for Implementation Science: A Systematic Review of Instruments Using Evidence-Based Rating Criteria. Implementation Science.
  • Lewis, C. C.., Marti, N., & Ayer, D. (in press). What practice elements do community mental health counselors report using with adult depression? Psychiatric Services.
  • Lewis, C. C.., Weiner, B. J., Stanick, C., & Fischer, S. (2015). Advancing implementation science through measure development and evaluation: A study protocol. Implementation Science.
  • Marriott, B.,* & Lewis, C. C.., Gobin, R. (2015). Disclosing traumatic experiences: correlates, context, and consequences. Psychological Trauma: Theory, Research, Practice, and Policy.
  • Scott, K.,* Klech, D., Lewis, C. C.., & Simons, A. D. (2015). What did they learn? Effects of a brief cognitive behavioral therapy workshop on community therapists' knowledge. Community Mental Health.
  • Lewis, C. C.., Stanick, C., Martinez, R.*, Weiner, B. J., Kim, M., Barwick, M. & Comtois, K. A. (2015). The society for implementation research collaboration instrument review project: a methodology to promote rigorous evaluation. Implementation Science, 10, 2-20. Scott, K.*, & Lewis, C. C.. (2015). Using measurement-based care to enhance any treatment. Cognitive and Behavioral Therapy, 22, 49-59.
  • Martinez, R.*, Lewis, C. C.., & Weiner, B. J. (2014). Instrumentation issues in implementation science. Implementation Science, 9, 118-127.
  • Lewis, C. C.., Scott, K.,* & Hendricks, K. E.* (2014). A model and guide for evaluating supervision outcomes in cognitive behavioral therapy-focused training programs. Training and Education in Professional Psychology, 8(3), 165-175.
  • Lewis, C. C.., Simons, A. D., & Kim, H. K., (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, 26 (4), 390-404.