In order to ensure the reliability of this study, set a trap in the questionnaire design. If two similar topics, if respondents in completing the questionnaire, the answers to these two questions are not consistent, the answers to this questionnaire will not be adopted.In order to ensure the validity of the study, two questionnaire surveys and interviews will be conducted. The first survey in October, for example, surveys will be conducted in December for the second time. And in December, will also take some of the members during interviews. If the results of the two surveys are similar, suggesting that the study has some validity.
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