To assess the measurement invariance of the three versions of the Pathological Narcissism Inventory (PNI) across adolescent and young adult participants, 678 Italian adolescent high school students (M = 16.83 years old, SD = 1.85 years) and 678 adult university students (M = 23.99 years old, SD = 2.60 years) matched on gender, civil status, and geographic area, were administered the Italian translation of the original 52-item PNI. The PNI, the Brief-Pathological Narcissism Inventory (B-PNI), and Super Brief-Pathological Narcissism Inventory (SB-PNI) scales all showed adequate reliabilities in both adolescent and young adult samples. In both samples, robust maximum likelihood confirmatory factor analysis indicated that covariation among the PNI/B-PNI first-order scales, as well as among the SB-PNI items, could be adequately explained by two-correlated factors operationalizing narcissistic grandiosity (NG) and narcissistic vulnerability (NV), respectively. Multiple-group confirmatory factor analyses supported scalar invariance for both B-PNI and SB-PNI NG and NV factors, and metric invariance for the PNI NG and NV factors.
|Original language||English (US)|
|Number of pages||14|
|Journal||Journal of Psychopathology and Behavioral Assessment|
|State||Published - Mar 1 2020|
All Science Journal Classification (ASJC) codes
- Clinical Psychology