1.explain the qualities of a good questionaire
2.explain diff. modes of data collection
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1. The following are characteristics of good questionnaire: Questionnaire should deal with important or significant topic to create interest among respondents. It should seek only that data which can not be obtained from other sources. It should be as short as possible but should be comprehensive.
2. Within the context of survey operations, mode refers to an employed method or approach used for the collection of data. ... Examples of these include mail and Internet-based surveys. The method of presenting the questions and receiving the responses also defines the mode of data collection
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