Survey: Questionnaire

A questionnaire is a collection of written queries grouped together in a single document requiring written responses to each item. A researcher uses a questionnaire to ask participants a series of questions relevant to the general research topic. Questionnaires can be used in a wide variety of research, including experiments, cross-section surveys, and qualitative studies. In experiments, for example, questionnaires can be used at several time points to assess changes in participant beliefs, attitudes, or feelings across the span of the experiment.

Most questionnaires are self-administered, meaning that the participant fills out the form with no help from the researcher. Because questionnaires are self-administered, participants can complete their responses regardless of whether or not the researcher is present. Historically, participants filled out questionnaires ...