Research: Accuracy

Testing Mediums’ Accuracy


An established laboratory protocol uses five levels of experimental masking/blinding to control for fraud, cueing, rater bias, cold reading, and the use of general statements as explanations for the accuracy of information provided by mediums. The findings to date from 58 readings performed by 20 mediums show that certain mediums, under tightly controlled laboratory conditions, can provide accurate and specific information about the deceased. Also, it seems that no type of information requested during research is more or less difficult to report during a mediumship reading than any other and mediums’ learning styles and sensory modality preferences (LS/SMPs) do not seem to have any impact on mediumistic abilities. However, accuracy testing findings cannot determine the source of the information mediums report.


Windbridge Research Center. (2017). Testing mediums’ accuracy under controlled laboratory conditions [Fact Sheet]. (PDF)


Beischel, J. (2021, March 31). A brief overview of mediumship accuracy testing at the Windbridge Research Center [Video]. (YouTube)

Peer-reviewed Articles

Beischel, J., Boccuzzi, M., Biuso, M., & Rock, A. J. (2015). Anomalous information reception by research mediums under blinded conditions II: Replication and extension. Explore, 11(2), 136–142. doi: 10.1016/j.explore.2015.01.001 (Publisher Page)

Beischel, J., & Conboy, L. (2021). Correlating mediums’ accuracy with learning styles and sensory modality preferences. Threshold: Journal of Interdisciplinary Consciousness Studies, 4(1), 1–20. (PDF)