What are the functions of a questionnaire?
A questionnaire is the vehicle used to present the questions the researcher desires respondents to answer.
A questionnaire serves six key functions:
(1) It translates the research objectives into specific questions asked of respondents.
(2) It standardizes those questions and the response categories so that every participant responds to identical stimuli.
(3) By its wording, question flow, and appearance, it fosters cooperation and keeps respondents motivated throughout the interview.
(4) It serves as an enduring record of the research.
(5) Depending on the data collection mode used, such as online, a questionnaire can speed up the process of data analysis.
(6) Finally, it contains the information on which reliability and validity assessments may be made. In other words, questionnaires are used by researchers for quality control.