Between-Groups Design: Decoding Behavioral Differences
Scientifically Reviewed · Dr. Marwa Abd-Alazim · August 17, 2026
Medically & Scientifically Reviewed
Verified: August 17, 2026
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n. an experimental design which involves two (or more) groups of participants simultaneously being tested. In the process, the effect of treatments can be measured and assesed by comparing data between groups. Compare within-subjects design.
BETWEEN-GROUPS DESIGN: “The simplest structure of a between-groups design is when one group gets designated as the control group and the other gets assigned as the treatment group.”
