Psychometric Properties of the Norwegian 200-Item Version of the HEXACO Personality Inventory-Revised

This study aimed to investigate the psychometric properties of the Norwegian 200-item version of the HEXACO Personality Inventory-Revised (HEXACO-PI-R). The sample consisted of 460 adults (51.3% women) aged 18-75 years (M = 41.5, SD = 15.3) who completed the instrument online. The average internal consistency was α = 0.89 for domains (range: 0.88-0.92) and α = 0.79 for facets (range: 0.60-0.87). Women had higher Emotionality (d = 1.08) and Honesty-Humility (d = 0.39) scores than men. Honesty-Humility scores increased with age. One month test-retest correlations ranged from 0.90 to 0.95 for domains. Exploratory structural equation modeling provided superior fit compared to confirmatory factor analysis (CFI = 0.928 vs. 0.647). Configural and metric invariance were supported across gender and age, with partial scalar invariance. Convergent validity with the Mini-International Personality Item Pool (Mini-IPIP) was strong for Extraversion, Conscientiousness, and Openness (r = 0.69-0.79). Honesty-Humility showed weak to modest associations attesting to the discriminative validity for this dimension. The Norwegian HEXACO-200 had strong psychometric properties demonstrating its suitability for personality assessment in Norwegian populations.