O’Keeffe, C. ., Massullo, B. ., Laythe, B., Dagnall, N., Drinkwater, K., & Houran, J. (2025). Haunted People Syndrome Redux: Concurrent Validity From an Independent Case Study. Journal of Scientific Exploration, 39(1), 85–106. https://doi.org/10.31275/20253479