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Global Illusions Knowledge Test

Since 2013, we have been measuring the global knowledge about illusions through the online quiz game.
The results are based on 346946 answers to questions in category illusions, given by players from 146 countries.
This test has questions in the following languages: German language, Polish language, English language and Russian language.

Results by country

Results by gender

men
 38.5% /102251
women
 22.4% /91474

Origin of answers

Answers distribution by gender:

gender
men
52%
102251
women
48%
91474

Answers distribution by language:

language
German language
1%
4593
Polish language
90%
312900
English language
7%
26702
Russian language
0%
2751

Answers distribution by country:

country
flagPoland
91%
91%
317902
flagthe United States
2%
2%
10373
flagGermany
1%
1%
5016
flagIndia
1%
1%
4224
flagthe United Kingdom
1%
1%
3627
flagRussia
0%
0%
1392
flagAustralia
0%
0%
992
flagCanada
0%
0%
854
flagAustria
0%
0%
803
flagUkraine
0%
0%
561

Quiz size

Number of active questions per language:

language
German language
22%
11
Polish language
37%
18
English language
29%
14
Russian language
10%
5

The results are released under the CC-attribution license.

You may freely use it and re-distribute, but you must provide the link back to this page