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 Pilot of questionnaire is indispensable
A tailor-made questionnaire design is quite important to achieve research objectives. Pilot of questionnaire is indispensable.

Before interview, pilot of questionnaire in some places would be able to modify the wording, grammar and logic based on the local culture, so as to guarantee the questionnaire to be scientific and effective. Moreover, some valuable information would be excavated.

If necessary, it would design alternative questionnaires to a number of places in China.

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