Does Psi Exist? Replicable Evidence for an Anomalous Process of Information Transfer

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Abstract

Most academic psychologists do not yet accept the existence of psi, anomalous processes of information or energy transfer (such as telepathy or other forms of extrasensory perception) that are currently unexplained in terms of known physical or biological mechanisms. We believe that the replication rates and effect sizes achieved by one particular experimental method, the ganzfeld procedure, are now sufficient to warrant bringing this body of data to the attention of the wider psychological community. Competing meta-analyses of the ganzfeld database are reviewed, 1 by R. Hyman (1985), a skeptical critic of psi research, and the other by C. Honorton (1985), a parapsychologist and major contributor to the ganzfeld database. Next the results of 11 new ganzfeld studies that comply with guidelines jointly authored by R. Hyman and C. Honorton (1986) are summarized. Finally, issues of replication and theoretical explanation are discussed.

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