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.

BETWEEN-GROUPS VARIANCE: "Exposure to a different set of experimental conditions will, indeed, result in a between-groups variance."
Cite this page: Nugent, Pam M.S., "BETWEEN-GROUPS VARIANCE," in, April 7, 2013, (accessed June 27, 2017).