| Have you ever conducted a paid survey? Do you | | | | disadvantages of doing surveys. Doing surveys is |
| know how to conduct surveys? Here I will give a | | | | a convenient way to get a lot of information. |
| brief introduction which may be helpful for you. | | | | However, some information may not have |
| There are several questions you must ask | | | | interval validity and can not be generalized. |
| yourself before carrying out surveys. Does the | | | | Survey instruments are needed. You should write |
| survey have a clear hypothesis? Are the survey | | | | self-administered questionnaires and |
| questions focused on the hypothesis? Can the | | | | investigator-administered questionnaires. |
| respondents answer the questions correctly and | | | | Pre-testing is always advisable. Sometimes, |
| unbiased? What do the survey results apply to? | | | | interview is a good idea. But whether it is |
| Certainly, there are advantages and | | | | worthwhile depend on different situation. |