n. in statistics, refers to the analysis of variance between two groups simultaneously undergoing testing. The variation shown in experimental scores reflects the degree by which their group means differ. Compare within-groups variance.
What is BETWEEN-GROUPS VARIANCE?
Written by Pam MS, NCSP | Fact checked by Psychology Dictionary staff
BETWEEN-GROUPS VARIANCE: "Exposure to a different set of experimental conditions will, indeed, result in a between-groups variance."
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