The relationship between the HEXACO personality model and Disintegration – a personality trait encompassing psychotic-like experiences/behaviors - was investigated. In this pre-registered study, we predicted that Disintegration factor would separate from HEXACO. Support for the metric invariance of the seven-factor structure based on HEXACO and Disintegration in three general population samples (UK, Germany, Serbia) consisting of 1105 participants in total was found. As expected, all nine subdimensions of Disintegration formed a strong higher-order factor separate from HEXACO factors. Disintegration appeared to be the most coherent and robust among the seven factors across samples (three nations) and units of analysis (facets and items). These findings further disconfirm a widely held assumption that psychotic-like tendencies are best conceptualized as high Openness.

Dataset for: Knežević, G., Lazarević, L. B., Bošnjak, M., & Keller, J. (2022). Proneness to psychotic-like experiences as a basic personality trait complementing the HEXACO model—A preregistered cross-national study. Personality and Mental Health, 16(3), 244-262. https://doi.org/10.1002/pmh.1537