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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 341693 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% /102004
women
 22.3% /91310

Origin of answers

Answers distribution by gender:

gender
men
52%
102004
women
48%
91310

Answers distribution by language:

language
German language
1%
4322
Polish language
90%
308635
English language
7%
26101
Russian language
0%
2635

Answers distribution by country:

country
flagPoland
91%
91%
314314
flagthe United States
2%
2%
9965
flagGermany
1%
1%
4462
flagIndia
1%
1%
4172
flagthe United Kingdom
1%
1%
3488
flagRussia
0%
0%
1309
flagAustralia
0%
0%
976
flagCanada
0%
0%
835
flagAustria
0%
0%
752
flagUkraine
0%
0%
554

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