Kurtz, Paul 1981 , "Is Parapsychology a Science? "Parapsychological research: A tutorial review and critical appraisal" | The Search for Psychic Power: ESP and Parapsychology Revisited |
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"Investigating Rhine's methods, we find that his mathematical methods are wrong and that the effect of this error would in some cases be negligible and in others very marked | ; Levitt, Norman; Lewis, Martin W |
The Ganzfeld database is particularly suitable for this study, because the parapsychological phenomenon it investigates is widely believed to be nonexistent | The Deceivers: Lives of the Great Imposters |
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"A skeptic's beliefs and disbeliefs" |
We find that many of his experiments were set up in a manner which would tend to increase, instead of to diminish, the possibility of systematic clerical errors; and lastly, that the ESP cards can be read from the back.