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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 344647 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% /102120
women
 22.3% /91377

Origin of answers

Answers distribution by gender:

gender
men
52%
102120
women
48%
91377

Answers distribution by language:

language
German language
1%
4477
Polish language
90%
311077
English language
7%
26391
Russian language
0%
2702

Answers distribution by country:

country
flagPoland
91%
91%
316411
flagthe United States
2%
2%
10147
flagGermany
1%
1%
4805
flagIndia
1%
1%
4212
flagthe United Kingdom
1%
1%
3513
flagRussia
0%
0%
1341
flagAustralia
0%
0%
985
flagCanada
0%
0%
850
flagAustria
0%
0%
787
flagUkraine
0%
0%
559

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