Ian J. Barnett, Ph.D.
Adjunct Assistant Professor of Biostatistics and Epidemiology
Department: Biostatistics and Epidemiology
Graduate Group Affiliations
Contact information
Division of Biostatistics
Department of Biostatistics, Epidemiology, and Informatics
University of Pennsylvania Perelman School of Medicine
212 Blockley Hall
423 Guardian Drive
Philadelphia, PA 19104
Department of Biostatistics, Epidemiology, and Informatics
University of Pennsylvania Perelman School of Medicine
212 Blockley Hall
423 Guardian Drive
Philadelphia, PA 19104
Office: 650-799-7868
Education:
B.S. (Mathematical and Computational Sciences)
Stanford University, Stanford, CA, 2010.
Ph.D. (Biostatistics)
Harvard University T.H. Chan School of Public Health, Boston, MA, 2014.
Permanent linkB.S. (Mathematical and Computational Sciences)
Stanford University, Stanford, CA, 2010.
Ph.D. (Biostatistics)
Harvard University T.H. Chan School of Public Health, Boston, MA, 2014.
Selected Publications
Ebert, J.P., Kranzler, H.R., Barnett, I.J., Hemmons, J.E., Yan, R., Spencer, E., Delgado, M.: Effect of smartphone breathalyzer feedback on willingness to drive in moderately intoxicated individuals: A randomized trial. Psychology of Addictive Behaviors Jul 2025.D’Alonzo, B.A., Schneider, A.L., Erz, A., Master, C.L., Barnett, I.J., Hamilton, R.H., Wiebe, D.J., Szymczak, J.E.: A Qualitative Study of Collegiate Student-Athlete Experiences of Recovery After Concussion. The Journal of Head Trauma Rehabilitation 10(1097), May 2025.
D'Alonzo, B.A., Schneider, A.L., Barnett, I.J., Master, C.L., Hamilton, R.H., Wiebe, D.J.: Concurrent symptom domains and associations with recovery timelines among collegiate athletes with sport-related concussion. British journal of sports medicine 59(7): 461-469, Apr 2025.
Cohen, A., Naslund, J., Lane, E., Bhan, A., Rozatkar, A., Mehta, U.M., Vaidyam, A., Byun, A., Barnett, I., Torous, J.: Digital phenotyping data and anomaly detection methods to assess changes in mood and anxiety symptoms across a transdiagnostic clinical sample. Acta Psychiatrica Scandinavica 151(3): 388-400, Mar 2025.
Gabler, L.F., Patton, D.A., Reynier, K.A., Barnett, I.J., Miles, A.M., Dau, N.Z., Clugston, J.R., Cobian, D.G., Harmon, K.G., Kontos, A.P., Lynall, R.C.: Distribution of position-specific head impact severities among professional and Division I collegiate American football athletes during games. BMJ Open Sport & Exercise Medicine 11(1), Mar 2025.
Hackett, K., Xu, S., McKniff, M., Paglia, L., Barnett, I., Giovannetti, T.: Mobility-based smartphone digital phenotypes for unobtrusively capturing everyday cognition, mood, and community life-space in older adults: feasibility, acceptability, and preliminary validity study. JMIR Human Factors 11: e59974, Nov 2024.
D’Alonzo, B., Schneider, A., Barnett, I., Master, C., Bretzin, A., Wiebe, D.: Associations of sex and sport contact-level with recovery timelines among collegiate athletes with sport-related concussion. Sports Medicine - Open 10(1), Aug 2024.
Burns, J., Chen, K., Flathers, M., Currey, D., Macrynikola, N., Vaidyam, A., Langholm, C., Barnett, I., Byun, A., Lane, E., Torous, J.: Transforming Digital Phenotyping Raw Data Into Actionable Biomarkers, Quality Metrics, and Data Visualizations Using Cortex Software Package: Tutorial. Journal of Medical Internet Research 26, Aug 2024.
Ebert, J., Xiong, R., Khan, N., Abdel-Rahman, D., Leitner, A., Everett, W., Gaba, K., Fisher, W., McDonald, C., Winston, F., Rosin, R., Volpp, K., Barnett, I., Wiebe, D., Halpern, S., Delgado, M.: A randomized trial of behavioral interventions yielding sustained reductions in distracted driving. Proceedings of the National Academy of Sciences 121(32), Aug 2024.
Cohen, A., et. al.: Digital Phenotyping Data and Anomaly Detection Methods to Assess Changes in Mood and Anxiety Symptoms across a Transdiagnostic Clinical Sample. Acta Psychiatrica Scandinavica May 2024 Notes: In press.