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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 348592 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% /102338
women
 22.4% /91512

Origin of answers

Answers distribution by gender:

gender
men
52%
102338
women
48%
91512

Answers distribution by language:

language
German language
1%
4947
Polish language
90%
313946
English language
7%
26927
Russian language
0%
2772

Answers distribution by country:

country
flagPoland
91%
91%
318807
flagthe United States
3%
3%
10527
flagGermany
1%
1%
5371
flagIndia
1%
1%
4255
flagthe United Kingdom
1%
1%
3666
flagRussia
0%
0%
1396
flagAustralia
0%
0%
1011
flagCanada
0%
0%
859
flagAustria
0%
0%
803
flagUkraine
0%
0%
566

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