BETWEEN-GROUPS VARIANCE By N., Pam M.S. - April 7, 2013 A statistic used when analysing the variance that reflects the degree to which the several group means differ from one another. Compare to within-group variance. BETWEEN-GROUPS VARIANCE: "The between-groups variance showed usual differences." Related Psychology Terms BETWEEN-GROUPS VARIANCE UNBIASED ESTIMATOR OF VARIANCE F RATIO WITHIN-GROUP VARIANCE POOLED VARIANCE WILKS'S LAMBDA FMOX STATISTIC ONE-WAY ANALYSIS OF VARIANCE PILLAI DIFFERENTIAL ACCURACY Cite this page: N., Pam M.S., "BETWEEN-GROUPS VARIANCE," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/between-groups-variance-2/ (accessed January 29, 2020).