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Low levels of discriminant validity between self-report measures of self-esteem, shame, and self-criticism: Implications for the measurement of self-evaluation and creation of the Negative Self-Evaluation Scale.

This article examined the discriminant and convergent validity of commonly used self-report measures of self-criticism, self-esteem, and shame. A confirmatory factor analysis (CFA) using multiple self-report measures of each construct showed low levels of discriminant validity between self-reported self-esteem, shame, and self-criticism and instead demonstrated correspondingly high levels of shared variance. However, bifactor analyses on the items across each measure suggested that self-report measures of self-esteem, shame, and self-criticism may contain distinct characteristics that are underrepresented in current measures of each construct. Based on the factor loadings in item-level bifactor analyses, a new measure, the Negative Self-Evaluation Scale (NSES), was constructed to improve the assessment of the unique characteristics of shame, self-esteem, and self-criticism. Implications for current and future practices concerning the measurement of each construct are discussed. (PsycInfo Database Record (c) 2022 APA, all rights reserved).