Clinical Research Glossary

frequency frequency


How often something happens over a period of time.

Example of frequency in a sentence

The frequency of study visits should be clear to anyone joining a research study.

More Info

Frequency refers to how many times something will happen. It also describes the number of times something occurs in a specific period of time.

Other info to think about when joining a study

The word “frequency” can be used in many different situations. For example, this term could be used to talk about the “frequency of study visits” you may have to make if you participate in the study. This term could also be used to talk about how often you have to take the study treatment or how often you need to fill out a questionnaire. If you experience some type of symptom while taking the investigational product, the study team may ask about the frequency of these symptoms.

If you have any questions about how often you have to do something in order to participate in the study, please ask with the study team.

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