World Internet Project — Research Methods of Participating Countries in 2007 Study
|
Country
|
Research Methods Employed
|
||||||
|
Sample
|
Method of Interview
|
Weighted by Census Data?
|
Age of Respondents
|
Number of Interviews
|
Margin of Error (18+ at .05)
|
||
|
Full sample
|
18+
|
||||||
| Australia |
Representative quota
|
Telephone
|
Yes
|
18+
|
1,000
|
1,000
|
3.1
|
| Canada |
Representative probability
|
Telephone
|
Yes
|
12+
|
3,150
|
2,666
|
1.9
|
| Columbia |
Stratified probability
|
Telephone
|
Yes
|
12+
|
2,656
|
2,056
|
2.2
|
| China (Urban) |
Representative (major cities)
|
Telephone
|
Yes
|
N/A
|
N/A
|
1,898
|
2.3
|
| Czech Republic |
Representative probability
|
Face-to-face home interview
|
Yes
|
12+
|
1,586
|
1,408
|
2.6
|
| Hungary |
Stratified probability
|
Face-to-face home interview
|
Yes
|
14+
|
3,059
|
2,882
|
1.8
|
| Israel |
Representative probability
|
Telephone
|
Yes
|
N/A
|
501
|
421
|
4.8
|
| Macao |
Representative probability
|
Telephone
|
Yes
|
6+
|
1,951
|
1,614
|
2.4
|
| New Zealand |
Panel with replacement (random)
|
Telephone
|
Yes
|
12+
|
1,529
|
1,322
|
2.7
|
| Singapore |
Panel with replacement (random)
|
Telephone
|
Yes
|
13+
|
884
|
421
|
4.8
|
| Sweden |
Panel with replacement (random)
|
Telephone
|
Yes
|
18+
|
2,016
|
2,216
|
2.2
|
| United Kingdom |
Representative probability (stratified)
|
Face-to-face home interview
|
Yes
|
14+
|
2,350
|
2,209
|
2.1
|
| United States |
Representative probability (random)
|
Telephone and online
|
Yes
|
12+
|
2,021
|
1,800
|
2.3
|