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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 345987 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% /102223
women
 22.3% /91422

Origin of answers

Answers distribution by gender:

gender
men
52%
102223
women
48%
91422

Answers distribution by language:

language
German language
1%
4533
Polish language
90%
312167
English language
7%
26562
Russian language
0%
2725

Answers distribution by country:

country
flagPoland
91%
91%
317348
flagthe United States
2%
2%
10251
flagGermany
1%
1%
4903
flagIndia
1%
1%
4216
flagthe United Kingdom
1%
1%
3573
flagRussia
0%
0%
1352
flagAustralia
0%
0%
992
flagCanada
0%
0%
852
flagAustria
0%
0%
791
flagUkraine
0%
0%
560

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