Does Disintegration Qualify as a Separate Trait Extending the HEXACO Model? A Preregistered Meta-Analysis Exploring Discriminant Validity.

This pre-registered meta-analysis examines the discriminant validity of Disintegration (D), the trait-like conceptualization of psychotic-like experiences and behaviors (PLEBs), in relation to the HEXACO personality traits. The main finding is that D shows small to moderate intercorrelations (i.e., range = |.01| - |.31|) ranging within the HEXACO intercorrelations. The main implication is that D as a most recent operationalization of PLEBs is not covered by existing taxonomies, but rather suggests its addition, which may allow for improved predictions of personality outcomes by covering previously neglected variance, or by capturing new phenomena. Limitations of the primary studies aggregated and the extended HEXACO plus D model are discussed.