title: Expanding the Nomological Net of the Pathological Narcissism Inventory: German Validation and Extension in a Clinical Inpatient Sample.
abstract: The Pathological Narcissism Inventory (PNI) is a multidimensional measure for assessing grandiose and vulnerable features in narcissistic pathology. The aim of the present research was to construct and validate a German translation of the PNI and to provide further information on the PNI's nomological net. Findings from a first study confirm the psychometric soundness of the PNI and replicate its seven-factor first-order structure. A second-order structure was also supported but with several equivalent models. A second study investigating associations with a broad range of measures ( DSM Axis I and II constructs, emotions, personality traits, interpersonal and dysfunctional behaviors, and well-being) supported the concurrent validity of the PNI. Discriminant validity with the Narcissistic Personality Inventory was also shown. Finally, in a third study an extension in a clinical inpatient sample provided further evidence that the PNI is a useful tool to assess the more pathological end of narcissism.
authors.affiliation: 1 University of Bern, Bern, Switzerland.
authors.forename: Carolyn C
authors.initials: CC
authors.lastname: Morf
authors.affiliation: 1 University of Bern, Bern, Switzerland.
authors.forename: Eva
authors.initials: E
authors.lastname: Schürch
authors.affiliation: 2 Westfälische Wilhelms University, Münster, Germany.
authors.forename: Albrecht
authors.initials: A
authors.lastname: Küfner
authors.affiliation: 1 University of Bern, Bern, Switzerland.
authors.forename: Philip
authors.initials: P
authors.lastname: Siegrist
authors.affiliation: 3 Charité, Berlin, Germany.|4 University of Potsdam, Potsdam, Germany.
authors.forename: Aline
authors.initials: A
authors.lastname: Vater
authors.affiliation: 2 Westfälische Wilhelms University, Münster, Germany.
authors.forename: Mitja
authors.initials: M
authors.lastname: Back
authors.affiliation: 5 Helios Klinik, Bad Grönenbach, Germany.
authors.forename: Robert
authors.initials: R
authors.lastname: Mestel
authors.affiliation: 4 University of Potsdam, Potsdam, Germany.
authors.forename: Michela
authors.initials: M
authors.lastname: Schröder-Abé
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005163:Factor Analysis, Statistical; D005260:Female; D005858:Germany; D006801:Humans; D008297:Male; D008875:Middle Aged; D009289:Narcissism; D010555:Personality Inventory; D025341:Principal Component Analysis; D011594:Psychometrics; D014175:Translating; D055815:Young Adult
keywords: Pathological Narcissism Inventory; assessment; construct validity; narcissism; nomological network