Treatment and control groups
Treatment Group
The Treatment Group (pronunciation: /ˈtriːtmənt gruːp/) is a group of subjects or patients who receive the treatment or intervention that is the focus of a clinical trial. The results from the treatment group are typically compared to those of a control group, which receives a placebo or standard treatment.
Etymology
The term "treatment group" originates from the field of experimental design in statistics, where different groups are exposed to various treatments or conditions for the purpose of comparing outcomes.
Control Group
The Control Group (pronunciation: /kənˈtroʊl gruːp/) is a group of subjects or patients who do not receive the experimental treatment in a clinical trial. Instead, they may receive a placebo or the standard treatment. The control group serves as a baseline against which the effects of the treatment can be measured.
Etymology
The term "control group" also originates from the field of experimental design in statistics. The control group is used to "control" for potential confounding variables, allowing researchers to isolate the effect of the treatment.
Related Terms
- Clinical Trial: A research study that tests how well new medical approaches work in people.
- Placebo: A substance that has no therapeutic effect, used as a control in testing new drugs.
- Experimental Design: The design of any task that aims to describe or explain the variation of information under conditions that are hypothesized to reflect the variation.
- Statistics: The discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
External links
- Medical encyclopedia article on Treatment and control groups
- Wikipedia's article - Treatment and control groups
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