Validation and Psychometric Properties of the HEXACO Personality Inventory Observer Report Form in the Polish Language.

The aim of this study was to verify the structure and psychometric properties of the Polish adaptation of the HEXACO-PI-R observer report form based on a heterogeneous target sample (liked, neutral and disliked peers). The vast majority of research has focused on the validity and reliability of the self-report form. The psychometric properties of the observer report version have been verified in only two languages.