Zener cards

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

Zener cards are cards used to conduct experiments for extrasensory perception (ESP). Perceptual psychologist Karl Zener (1903–1964) designed the cards in the early 1930s for experiments conducted with his colleague, parapsychologist J. B. Rhine (1895–1980).

Excerpt from the Wikipedia article “Zener cards”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Mikhail Ryazanov (talk) 01:30, 1 April 2014 (UTC), CC BY-SA 3.0, via Wikimedia Commons.