Department of Psychology
B.S. Liberty University, 2010
M.A. Case Western Reserve University, 2012
Ph.D. Case Western Reserve University, 2016
Pre-doctoral Internship: Louis Stokes Cleveland Veteran’s Affairs Medical Center
Phone: (419) 372-2045
Office: 246 Psychology
My research (and the research of the SPARTA lab) falls primarily into three domains: the psychology of religion and spirituality, the psychology of human sexuality, and the psychology of addiction. With regards to religion and spirituality, I have a particular interest in the religious and spiritual struggles, crises of faith, religiously-based moral emotions, feelings of doubt or exit from faith, and the role of personality in shaping religious and spiritual experiences. With regards to the psychology of human sexuality, I am very interested in the role that technology plays in shaping human sexual behaviors. To this end, I have a number of ongoing research projects examining internet pornography use and online sexuality. Finally, in regards to addiction, I have past and ongoing projects related to perceived addiction to internet pornography, hypersexual behavior more broadly, and pathological gambling. In addition to these domains, I am also interested in the Open Science movement more broadly and in promoting replicability, reproducibility, and transparency in the scientific process. I strive to conduct my research in accordance with current standards of transparency and openness, and I encourage my students to do the same. You can find more information about my current projects at my Open Science Framework page (https://osf.io/c8hxw/) and a complete list of my publications at my Google Scholar page (https://scholar.google.com/citations?user=gCnmj3kAAAAJ&hl=en).
“More information about my research interests, ongoing projects, and the SPARTA Lab can be found at my website: JoshuaGrubbsPhD.netlify.com.”
Taking Grad Students? Yes
Sponsoring Undergraduate Research? Yes
Grubbs, J. B., & Exline, J. J. (2016). Trait entitlement: A cognitive-personality source of vulnerability to psychological distress. Psychological Bulletin, 142, 1204–1226. https://doi.org/10.1037/bul0000063
Grubbs, J. B., Exline, J. J., Campbell, W. K., Twenge, J. M., & Pargament, K. I. (2017). God owes me: The role of divine entitlement in predicting struggles with a deity. Psychology of Religion and Spirituality. https://doi.org/10.1037/rel0000147
Grubbs, J. B., Exline, J. J., Pargament, K. I., Hook, J. N., & Carlisle, R. D. (2015). Transgression as addiction: religiosity and moral disapproval as predictors of perceived addiction to pornography. Archives Of Sexual Behavior, 44, 125–136. https://doi.org/10.1007/s10508-013-0257-z
Grubbs, J. B., & Perry, S. L. (2018). Moral Incongruence and Pornography Use: A Critical Review and Integration. The Journal of Sex Research, 1–9. https://doi.org/10.1080/00224499.2018.1427204
Grubbs, J. B., Perry, S. L., Wilt, J. A., & Reid, R. C. (2018) Pornography Problems Due to Moral Incongruence: An Integrative Model with a Systematic Review and Meta-Analysis. Archives of Sexual Behavior (Online First). DOI: 10.1007/s10508-018-1248-x
Grubbs, J. B., Stauner, N., Exline, J. J., Pargament, K. I., & Lindberg, M. J. (2015). Perceived addiction to Internet pornography and psychological distress: Examining relationships concurrently and over time. Psychology of Addictive Behaviors, 29, 1056.
Grubbs, J. B., Wilt, J. A., Exline, J. J., & Pargament, K. I. (2018). Predicting pornography use over time: Does self-reported “addiction” matter? Addictive Behaviors, 82, 57–64. https://doi.org/10.1016/j.addbeh.2018.02.028
Grubbs, J. B., Wilt, J. A., Exline, J. J., Pargament, K. I., & Kraus, S. W. (2018). Moral disapproval and perceived addiction to internet pornography: A longitudinal examination. Addiction, 113, 496–506. https://doi.org/10.1111/add.14007
Grubbs, J. B., Wilt, J., Stauner, N., Exline, J. J., & Pargament, K. I. (2016). Self, struggle, and soul: Linking personality, self-concept, and religious/spiritual struggle. Personality and Individual Differences, 101, 144–152.
Rasmussen, K. R., Grubbs, J. B., Pargament, K. I., & Exline, J. J. (2018). Social desirability bias in pornography-related self-reports: The role of religion. Journal of Sex Research, 55, 381–394. https://doi.org/10.1080/00224499.2017.1399196
PSYC 4150. Psychology of Religion and Spirituality
PSYC 6150. Psychotherapy Team