Trait and source factors in HEXACO‐PI‐R self‐ and observer reports

We examined the joint factor structure of self‐reports and observer reports on the facet scales of the HEXACO Personality Inventory—Revised in a sample of 563 pairs of well‐acquainted persons. In separate analyses based on a targeted orthogonal rotation and on a CFA model, we identified six trait factors (representing the HEXACO dimensions) plus two source factors (representing the favourability bias of self‐reports and observer reports, respectively). All six trait factors were recovered with substantial loadings for the appropriate facet scales. The content of the self‐report and observer report source factors suggested that the former mainly involved ‘egoistic’ or ‘agentic’ biases and the latter mainly involved ‘moralistic’ or ‘communal’ biases. Copyright © 2010 John Wiley & Sons, Ltd.