Clinical Research Glossary

questionnaire questionnaire


A list of questions for study participants to answer as part of the study.

Example of questionnaire in a sentence

A questionnaire is one way researchers can collect data.

More Info

A questionnaire could be used to find out if a person is eligible to take part in the study, to see how someone is feeling, or to measure the effects of an intervention.

A questionnaire could be online or on paper.

Other info to think about when joining a study

A questionnaire or multiple questionnaires may need to be completed over the course of your participation in the study. This may be something you do by yourself or someone on the research team may do it with you.

As with any study procedure, you can ask what the purpose of the questionnaire is and if it has to be completed all at once.

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