Understanding Zener Cards: History, Usage, and Modern Applications
Understanding Zener Cards: History, Usage, and Modern Applications Zener cards, a deck of five simple geometric shapes, have a history steeped in parapsychology and psychological testing. Originally developed by perceptual psychologist Karl Zener and parapsychologist J.B. Rhine in the 1930s, Zener cards were designed to test for extrasensory perception (ESP), specifically clairvoyance. These cards quickly … Read more