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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 347602 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% /102269
women
 22.4% /91494

Origin of answers

Answers distribution by gender:

gender
men
52%
102269
women
48%
91494

Answers distribution by language:

language
German language
1%
4642
Polish language
90%
313381
English language
7%
26813
Russian language
0%
2766

Answers distribution by country:

country
flagPoland
91%
91%
318347
flagthe United States
3%
3%
10454
flagGermany
1%
1%
5044
flagIndia
1%
1%
4237
flagthe United Kingdom
1%
1%
3645
flagRussia
0%
0%
1394
flagAustralia
0%
0%
1004
flagCanada
0%
0%
855
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