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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 343501 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
 38.5% /102094
women
 22.3% /91322

Origin of answers

Answers distribution by gender:

gender
men
52%
102094
women
48%
91322

Answers distribution by language:

language
German language
1%
4405
Polish language
90%
310112
English language
7%
26316
Russian language
0%
2668

Answers distribution by country:

country
flagPoland
91%
91%
315574
flagthe United States
2%
2%
10100
flagGermany
1%
1%
4665
flagIndia
1%
1%
4209
flagthe United Kingdom
1%
1%
3494
flagRussia
0%
0%
1327
flagAustralia
0%
0%
985
flagCanada
0%
0%
847
flagAustria
0%
0%
774
flagUkraine
0%
0%
555

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