wwc_classify: Classify baseline equivalence under WWC standards

In baselinr: WWC-Aligned Baseline Equivalence Tables for Education Impact Evaluations

Classify baseline equivalence under WWC standards

Description

Maps standardized effect sizes to the three What Works Clearinghouse baseline-equivalence categories. Sign is ignored; classification uses the absolute value of the effect size.

Usage

wwc_classify(es)

Arguments

es	Numeric vector of standardized effect sizes (e.g. values returned by hedges_g() or cox_index()).

Value

A character vector the same length as es:

• "satisfied" when ⁠|es| <= 0.05⁠ (no adjustment needed),

• "satisfied_with_adjustment" when ⁠0.05 < |es| <= 0.25⁠ (equivalence holds only if the covariate is adjusted for in the impact model),

• "not_satisfied" when ⁠|es| > 0.25⁠. NA inputs return NA.

References

What Works Clearinghouse (2022). Procedures Handbook (Version 5.0). U.S. Department of Education.

Examples

wwc_classify(c(0.03, 0.12, 0.80))

baselinr documentation built on July 8, 2026, 9:07 a.m.