Table 2 Comparison of survey methods for six countries
| Â | Australia | Japan | South Korea | Hong Kong | Taiwan-Taipei | Thailand |
|---|---|---|---|---|---|---|
Fieldwork dates | Sept. 2009 | 11 Sept. ~ 21 Sept. | 20 Oct. ~ 10 | October 2009 ~ | 6 Oct. ~ 16 | 20 Oct. ~ 10 Nov., |
2009 | Nov., 2009 | October 2010 | Nov., 2009 | 2009 | ||
Population | 18 years old and | 19 years old and | 18 years old and | 18 years old or | Taipei legal | 18 years old and |
over | over | over | above | citizens who | over | |
are 20 years | ||||||
old or older | ||||||
Geographic | Nationwide | Nationwide | Nationwide | Hong Kong | Taipei | Nationwide |
coverage | ||||||
Sampling method | Stratified according | Regionally stratified | Multi – Stages | Quota sampling | Central | Multi – Stages |
to state population | proportional | Sampling | based on the | Location Quota | Sampling | |
random sampling | three age ranges | Sampling | ||||
Fieldwork | Self-administered | Face to face | Face to face | Telephone | Face to face | Face to face |
Methods | postal survey | interview | interview | interview | interview | interview |
Sample size | 1,044 | 1,006 | 1,200 | 681 | 1,200 | 1,200 |