Revaluating the evidence for the General Factor of Personality in the Multidimensional Personality Questionnaire: Concerns about Rushton and Irwing (2009)

We evaluated whether the Big Five-based hierarchical model for the Multidimensional Personality Questionnaire (MPQ) reported by Rushton and Irwing (2009) would replicate in a second sample of 733 participants. We were unable to confirm their hierarchical model and detected problems with the reporting of the original results. Exploratory factor analytic investigations generally supported the canonical three factor solution for the MPQ described in the existing literature. This was the case for both the present dataset and for the correlation matrix analyzed by Rushton and Irwing.

► The Ruston and Irwing model for the MPQ failed to replicate in a second sample.
► Ruston and Irwing imposed unreported constraints on their original Big Five model.
► EFA investigations supported a three factor solution for the MPQ.