write three demerits of mailing questionnaire
Answers
Explanation:
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Explanation:
It cannot be used for illiterate or uneducated respondents.
Rate of non-response is high in comparatively with other method.
If there is any confusion in the questionnaire, they cannot be solved.
There is inbuilt inflexibility.
The control over questionnaire may be lost once it is sent.
It is difficult to verify the accuracy of the answers given.
This method is likely to be the slowest of all.
There is no scope for asking supplementary questions for cross checking of the information supplied by the respondents.
Informants are not willing to give written information in their own, handwriting as certain personal questions like income, property, personal habits and so on.
Many questionnaire returned may be incomplete, haphazard as well as inaccurate.
Pilot study is necessary in this method.