The 24-item Brief HEXACO Inventory (BHI)

•The Brief HEXACO Inventory represents the HEXACO model with 4 items per domain.•Low alpha of the BHI is combined with relative high test–retest stability.•The BHI shows high convergent correlations and modest validity loss.•Optimal BHI validity correction combines three consistency estimates.

Up until now, no really short instrument that measures the six personality dimensions of the HEXACO model has been available. In two studies, I report the construction of the Brief HEXACO Inventory (BHI), which represents the 24 HEXACO facets with 1 item per facet (i.e., 4 items per domain) and which takes approximately 2–3 min to complete. Although characterized by relatively low alpha reliability, its test–retest stability, self-other agreement, and convergent correlations with full-length scales are relatively high and its validity loss is only modest. Correcting for attenuation using a weighted average of alpha reliability, test–retest stability, and self-other agreement, the BHI re-estimates the original construct validity correlations of the HEXACO-PI-R with relatively great accuracy.