Measurement Invariance of Three Versions of the Pathological Narcissism Inventory across Gender-Matched Italian Adolescent High School and Young Adult University Students

Antonella Somma, Aaron Lee Pincus, Andrea Fontana, Beatrice Cianfanelli, Andrea Fossati

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Abstract

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 languageEnglish (US)
JournalJournal of Psychopathology and Behavioral Assessment
DOIs
StateAccepted/In press - Jan 1 2019

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Narcissism
Young Adult
Students
Equipment and Supplies
Statistical Factor Analysis

All Science Journal Classification (ASJC) codes

  • Clinical Psychology

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title = "Measurement Invariance of Three Versions of the Pathological Narcissism Inventory across Gender-Matched Italian Adolescent High School and Young Adult University Students",
abstract = "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.",
author = "Antonella Somma and Pincus, {Aaron Lee} and Andrea Fontana and Beatrice Cianfanelli and Andrea Fossati",
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AU - Somma, Antonella

AU - Pincus, Aaron Lee

AU - Fontana, Andrea

AU - Cianfanelli, Beatrice

AU - Fossati, Andrea

PY - 2019/1/1

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N2 - 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.

AB - 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.

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