- The researcher should explain about the surveying clearly to respondents- The researcher should ask respondents to answer questionnaire for survey, but the respondents have right to deny the survey- The researcher must makes sure to keep the individual information about respondents such as name, address, email, etc. - Every question is questionnaire must be explained in detail to respondents if they do not understand.- The researcher must make sure the answer will not effective or inconvenient to respondents
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