Concept information
Preferred term
comparison group
Definition
- In an experiment testing the effects of a treatment, a comparison group refers to a group of units (e.g., persons, classrooms) that receive either no TREATMENT or an alternative treatment. The purpose of a comparison group is to serve as a source of COUNTERFACTUAL causal inference. [Source: The SAGE Encyclopedia of Social Science Research Methods; Comparison Group]
Broader concept
Belongs to group
URI
https://concepts.sagepub.com/social-science/concept/comparison_group
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