is_specified_input_of statistic effect size estimate confidence interval calculation root-mean-square standardized effect Alejandra Gonzalez-Beltran Orlaith Burke Philippe Rocca-Serra RMSSE http://www.statpower.net/Steiger%20Biblio/Steiger04.pdf root-mean-square standardized effect is a statistic which denotes effect size in the context of analysis of variance and corresponds to the square root of the arithmetic average of p standardized effects (effects normalized to be expressed in standard deviation units). Ψ pending final vetting