Abstract

Inconsistent responding poses a particular risk to self-report data and is a common phenomenon in undergraduate and community subject pools. The HEXACO-100 personality inventory (Lee & Ashton, 2018) lacks internal validity scales that could be used to identify inconsistent responding. To address this need, the present study developed a HEXACO Inconsistent Responding Test (HIRT). Highly correlated and conceptually overlapping HEXACO-100 item pairs were identified from a derivation sample and cross-validated by comparing real data to randomly generated protocols. The HIRT was highly accurate at identifying both randomly generated and half-randomly generated protocols. HIRT scores exhibited significant correlations with other inconsistency measures (i.e., the Triarchic Assessment Procedure for Inconsistent Responding and the HEXACO's Inter-item Standard Deviation) and were as effective as these other measures at differentiating between consistent and inconsistent responders. This preliminary validation of the HIRT provides strong evidence of its ability to improve the quality of data gathered with the HEXACO-100, which may be especially useful for researchers hoping to utilize the measure in clinically relevant research and applications. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

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