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Anxiety and Trauma Research Group

Principal Investigator: Dr. Joshua Clapp

University of Wyoming
Department of Psychology
1000 E. University Ave.
Laramie, WY 82070
Phone: (307) 766-6304
E-mail: jclapp@uwyo.edu

Graduate Students

  • Adam Ripley, M.S.
  • Shira Ken, M.S.
  • Ryan Kozina, M.S.
  • Layla Elmi, B.S.
  • Alicia Bachtel, M.A.

Research Interests

  • Trajectories of response to psychosocial intervention
  • The impact of emotional dysregulation on psychopathology and interpersonal functioning
  • Conceptualization and measurement of trauma-related psychopathology
  • Stigma related to the causes and consequences of trauma exposure

Current and Recent Lab Research Activities

  • Assessment of functional outcomes following trauma exposure
  • Impact of hostility priming on aggressive behavior following trauma
  • Impact of gender and stress exposure on the interrelation of depression and alcohol use
  • Measurement of connectedness as a mitigating factor for suicide risk
  • Self-report and behavioral measures of empathy as moderators of PTSD and social functioning
  • Exploration of community beliefs involving the cases and consequences of trauma exposure

Select Publications

Brown, L. A., Clapp, J. D., Kemp, J. J., Yarvis, J. S., Dondanville, K. A., Litz, B. T., Mintz, J., Roache, J. D., Young-McCaughan, S., Peterson, A. L., & Foa, E. B. (in press). The pattern of symptom change during Prolonged Exposure Therapy and Present-Centered Therapy for PTSD in active duty military personnel. Psychological Medicine.

Clapp, J. D., Kern, S. M.*, Kozina, R. M.*, Ripley, A. J.*, & Lear, M. K. (2019). Stability of reported trauma over extended intervals: Evaluation of the Exposure Screen Checklist. Psychological Assessment, 31, 805-816.

Ripley, A. J.*, Clapp, J. D., & Wilkowski, B. M. (2019). PTSD and anger: Evaluation of an indirect effect model in a civilian trauma sample. Journal of Behavior Therapy and Experimental Psychiatry, 64, 149-157.

McLure, K. E.*, Blakey, S. M., Kozina, R. M.*, Ripley, A. J.*, Kern, S. M.*, & Clapp, J. D. (2019). Behavioral inhibition and posttrauma symptomatology: The moderating effect of safety behaviors. Journal of Clinical Psychology, 75, 1350-1363.

Kern, S. M.*, Stacy, S. E.*, Ripley, A. J.*, Kozina, R. M.*, & Clapp, J. D. (2019). Exploring the relation between PTSD and interpersonal outcomes: The role of social acknowledgment and trauma type. Journal of Clinical Psychology, 75, 132-145.

Steinmetz, S. E., Gray, M. J., Clapp, J. D. (2019). Development and evaluation of the Perpetration-Induced Distress Scale for measuring shame and guilt in civilian populations. Journal of Traumatic Stress, 32, 437-447.

Meyer, J. M.*, Clapp, J. D., Whiteside, S. P., Dammann, J., Kriegshauser, K. D., Hale, L. R., Jacobi, D. M., Riemann, B. C., & Deacon, B. J. (2018). Predictive relationship between parental beliefs and accommodation of pediatric anxiety. Behavior Therapy, 49, 580-593.

Ripley, A. J.*, Clapp, J. D., & Beck, J. G. (2017). Risk factors for posttraumatic stress disorder: A prospective analogue study. Behaviour Research and Therapy, 94, 71-80.

Clapp, J. D., Kemp, J. J.*, Cox, K. S., & Tuerk, P. (2016). Patterns of change in response to Prolonged Exposure: Implications for treatment outcome. Depression and Anxiety, 33, 807-815.

Scott, W. D., Clapp, J. D., Mileviciute, I., & Mousseau, A. (2016). Children's Depression Inventory: A unidimensional factor structure for American Indian and Alaskan Native Youth. Psychological Assessment, 28, 81-91.

Clapp, J. D., Patton, S. C., Beck, J. G. (2015). Expressive inhibition in response to stress: Implications for emotional processing in posttraumatic stress disorder. Journal of Anxiety Disorders, 29, 109-118.

Beck, J. G., Clapp, J. D., Jacobs-Lentz, J., McNiff, J., Avery, M. L., & Olsen, S. A. (2014). The association of mental health conditions with employment, interpersonal, and subjective functioning after intimate partner violence. Violence Against Women, 20, 1321-1337.

Clapp, J. D., Baker, A. S., Litwack, S. D., Sloan, D. & Beck, J. G. (2014). Properties of the Driving Behavior Survey among individuals with motor vehicle accident-related posttraumatic stress disorder. Journal of Anxiety Disorders, 28, 1-7.

Clapp, J. D., Grubaugh, A. L., Allen, J. G., Oldham, J. M., Fowler, J. C., Hardesty, S., & Frueh, B. C. (2014). Interpersonal change following intensive inpatient treatment. Psychiatry: Interpersonal and Biological Processes, 77, 246-261.

Baker, A. S., Litwack, S. D., Clapp, J. D., Sloan, D. & Beck, J. G. (2014). The Driving Behavior Survey as a measure of behavioral stress responses to MVA-related PTSD. Behavior Therapy, 45, 444-453.

Clapp, J. D., McNiff, J., Jaconis, M.*, Olsen, S. A., Woodward, M., & Beck, J. G. (2014). Expressive inhibition following interpersonal trauma: An analysis of reported function. Journal of Anxiety Disorders, 28, 230-236.

Clapp, J. D., McNiff, J., Jaconis, M.*, Olsen, S. A., Woodward, M., & Beck, J. G. (2014). Expressive inhibition following interpersonal trauma: An analysis of reported function. Journal of Anxiety Disorders, 28, 230-236.

Clapp, J. D., Grubaugh, A. L., Allen, J. G., Mahoney, J., Oldham, J. M., Fowler, J. C., Ellis, T., Elhai, J. D., & Frueh, B. C. (2013). Modeling trajectory of depressive symptoms among psychiatric inpatients: A latent growth curve approach. Journal of Clinical Psychiatry, 74, 492-499.

* Student advisee

Josh Clapp



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Department of Psychology

1000 E University Ave.

Dept. 3415

Laramie, WY 82071

Phone: 307-766-6303

1000 E. University Ave. Laramie, WY 82071
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