Zener Cards
Software / App
A set of cards used by J. B. Rhine in experiments to test for extrasensory perception (ESP).
Mentioned in 2 videos
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Videos Mentioning Zener Cards

Is There Scientific Evidence for ESP? | Jeffrey Mishlove
Closer To Truth
A set of cards used in experiments to test ESP abilities, typically involving guessing symbols. These were famously used by J. B. Rhine.

Can Science Study the Nonphysical? | Jeffrey Mishlove
Closer To Truth
A set of cards used by J. B. Rhine in experiments to test for extrasensory perception (ESP).