A systematic framework for defining R-squared measures in mediation analysis.
Hongyun Liu, Ke‐Hai Yuan, Hui Li
Abstract
² effect-size measure. Results show that the new R2 measure performs well in approximating the true value of the explained variance of the mediation effect. The use of the proposed measure is illustrated with empirical examples together with program code for its implementation. (PsycInfo Database Record (c) 2025 APA, all rights reserved).
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