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Glossary of Terms

We know that many of the concepts used on this site can be difficult to understand. For that reason, we have provided you with a glossary to help you make sense of the terms used in Comparative Effectiveness Research. Every word that is defined in this glossary should appear highlighted throughout the Web site. When you come upon a highlighted term and would like to read the full definition, you can either click on the word to visit the glossary or roll your mouse over the word for a pop-up definition.

 

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Data

Definition: In clinical research, the information recorded about a participant in a study. There are many different kinds of data.

Example: Some types of data are:

  • Baseline — Information that describes the condition of people at the beginning of the study.
  • Demographic — Information about the person's age, sex, race, geographic background, etc.
  • Objective — Information that can be measured. For example, blood or laboratory test results or X-ray findings.
  • Subjective — Severity of symptoms or how people feel about their health.
  • Quality-of-Life — Subjective and objective information about a person's feelings and ability to perform certain routine, daily activities. For example, if a person has arthritis, how much pain does that person have? How easy is it to move or hold something?

Related Terms