The study of public opinion about the World Cup is based on 19,780 interviews conducted by YouGov in 19 countries between May 19 and June 2. YouGov conducted the interviews online, after selecting respondents from opt-in panels recruited by YouGov or its partners.
Internet penetration for these countries range from 37 percent in Mexico to 58 percent in Italy to 93 percent in the Netherlands, according to Internet World Statistics.
In countries with low Internet access, the samples were selected and the results weighted to reflect adult Internet users in terms of age, sex and some other country-specific variables. For countries with high access, the results are intended to reflect all adults in terms of age, gender, frequency of Internet usage and other variables.
Details on individual countries follow:
Language: Spanish
Dates: May 20 to May 23, 2014
Sample size: 1,010
Panel: GMI
Note: Respondents tend to be based just in urban areas
Language: English
Dates: May 19 to May 24, 2014
Sample size: 1,004
Panel: GMI
Language: Portuguese
Dates: May 21 to May 23, 2014
Sample size: 1,009
Panel: GMI
Note: Respondents tend to be based just in urban areas
Language: Spanish
Dates: May 20 to May 28, 2014
Sample size: 1,006
Panel: NetQuest
Note: Respondents are based just in urban areas
Language: Spanish
Dates: May 20 to May 23, 2014
Sample size: 1,007
Panel: GMI
Note: Respondents tend to be based just in urban areas
Language: Spanish
Dates: May 20 to May 29, 2014
Sample size: 518
Panel: NetQuest
Note: Respondents are based just in urban areas
Language: English
Dates: May 21 to May 22, 2014
Sample size: 1,888
Panel: YouGov
Language: French
Dates: May 30 to June 2, 2014
Sample size: 1,020
Panel: YouGov
Language: German
Dates: May 21 to May 26, 2014
Sample size: 1,061
Panel: YouGov
Language: Greek
Dates: May 21 to May 26, 2014
Sample size: 1,001
Panel: GMI
Language: Italian
Dates: May 21 to May 23, 2014
Sample size: 1,007
Panel: GMI
Language: Japanese
Dates: May 20 to May 28, 2014
Sample size: 1,003
Panel: GMI
Language: Spanish
Dates: May 21 to May 23, 2014
Sample size: 1,004
Panel: GMI
Note: Respondents tend to be based just in urban areas
Language: Dutch
Dates: May 21 to May 27, 2014
Sample size: 1,002
Panel: GMI
Language: Portuguese
Dates: May 20 - May 27, 2014
Sample size: 1,011
Panel: NetQuest
Language: Russian
Dates: May 21 to May 23, 2014
Sample size: 1,011
Panel: GMI
Note: Respondents tend to be based just in urban areas
Language: Korean
Dates: May 21 to May 27, 2014
Sample size: 1,014
Panel: GMI
Language: Spanish
Dates: May 21 to May 23, 2014
Sample size: 1,007
Panel: GMI
Language: English
Sample size: 1,197
Dates: May 23 to May 27, 2014
Panel: YouGov