A Review of the Pearce-Pratt Distance Series of ESP Tests

This is J. B. Rhine and J. G. Pratt's own published review, in the Journal of Parapsychology, of their earlier Pearce Pratt distance series of card guessing extrasensory perception experiments conducted at Duke University. As the experimenters' own retrospective account of their own study, it documents what they claim to have found and how they responded to methodological criticism raised against the original series, making it a primary record of a specific, historically influential and heavily disputed set of experiments in parapsychology. Its limit is exactly that authorship, it is the original researchers defending their own results rather than an independent replication or a neutral third party assessment, so a claim about whether the Pearce Pratt series actually demonstrates extrasensory perception needs to be read alongside independent critical assessments of parapsychological methodology from that period, not this review alone.