Measure your intuition with Zener cards
The Zener card test was designed by J. B. Rhine and Karl Zener in the 1930s to study extrasensory perception. The app randomly hides one of the five cards — circle, cross, waves, square and star — and you have to sense which one it is, without resorting to logic.
You need 25 attempts for the result to be meaningful: hitting 5 matches the average for pure chance, while 8 or more starts to suggest extrasensory perception. It's a free, playful experiment to put your intuition to the test.
Frequently asked questions
- What are Zener cards?
- They're five cards with simple symbols — circle, cross, waves, square and star — created in the 1930s by Karl Zener and J. B. Rhine for extrasensory perception experiments.
- How many hits indicate extrasensory perception?
- Over 25 attempts, 5 hits is what you'd expect from pure chance; from 8 onwards the result starts to point to possible extrasensory perception.
- Is the test scientifically valid?
- It's a recreation for entertainment purposes. It's fun for playing with your intuition, but it's not a scientific test and doesn't measure real abilities.