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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 339988 answers to questions in category illusions, given by players from 145 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
 38.4% /101892
women
 22.2% /91218

Origin of answers

Answers distribution by gender:

gender
men
52%
101892
women
48%
91218

Answers distribution by language:

language
German language
1%
4210
Polish language
90%
307269
English language
7%
25926
Russian language
0%
2583

Answers distribution by country:

country
flagPoland
92%
92%
312992
flagthe United States
2%
2%
9889
flagGermany
1%
1%
4379
flagIndia
1%
1%
4154
flagthe United Kingdom
1%
1%
3456
flagRussia
0%
0%
1282
flagAustralia
0%
0%
964
flagCanada
0%
0%
815
flagAustria
0%
0%
738
flagUkraine
0%
0%
550

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