DEFINITION

A group of participants in a research study who all receive the same study treatment.

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USE IN A SENTENCE

As a participant in a study with two study arms, you will be part of one group that receives one study treatment that will be compared to a second group that receives a different study treatment.

MORE INFO

Studies that compare two or more study treatments divide participants into separate groups. These groups are called arms and are used to assess the impact of the different treatments.

OTHER WORDS USED

cohort

study arm
group
treatment group

RELATED WORDS

randomization

OPPOSITE WORDS

OTHER RESOURCES

 

 

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