Limitations of Mail Questionnaire
- It is not suitable when questions are difficult & complicated. In such a case the help of interviewer is required to offer some introductory explanation to the respondent.
- When the objective is to get the spontaneous answers of the respondent or his own answers uninfluenced by others who may influence his thinking.
- It is not possible to verify whether the respondent himself has filled in the questionnaire. (e.g.: If a questionnaire is targeted to a housewife she may ask her husband to fill it up on her behalf). This can result into incorrect answers.
- In case there is any ambiguity or any inconsistency in the answers it will be difficult for the researcher to make use of such questionnaire, as he has to accept it.
- The respondent may go through his answers after he has filled in the entire questionnaire and may make certain modification in his original answers as a result of which these answers cannot be regarded as independent.
- It does not allow the researcher to supplement the information by his personal observations.
- A mail questionnaire normally has a relatively poor response compared to a questionnaire canvassed personally.
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