Regarding the length of questionnaires to be used in survey research, which of the following statements is most accurate? a. A relatively lengthy survey communicates your seriousness about the research endeavor so people will be more willing to complete it. b. Shorter surveys produce data that are ambiguous and therefore not useful. c. Including a large number of items on the survey assures that you will get useful data for all of your trouble. d. Keeping the survey short makes it more likely people will be willing to complete it.

d. Keeping the survey short makes it more likely people will be willing to complete it.

Explanation:

Surveys are designed to collect primary (first hand) information, for conducting a research.

A good survey questionnaire has many features :- Apt length, short & simple questions, properly arranged questions, easy language etc.

The most important 'good questionnaire characteristic' is : The right length. It should not be too short, as to not cover the important aspects of research questions. It should not be too long, as a lengthy questionnaire negatively effects the length & quality of responses.

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explanation:

answer; scientific;