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Validation of the German five-factor narcissism inventory and construction of a brief form using ant colony optimization
Jauk,Emanuel Olaru,Gabriel Schürich,Eva Back,Mitja D. Morf,Carolyn
Jauk,Emanuel
Olaru,Gabriel
Schürich,Eva
Back,Mitja D.
Morf,Carolyn
Abstract
Narcissism is a multifaceted construct commonly conceptualized as comprising grandiose and vulnerable aspects in a two-factor model. While the manifold correlates of these aspects imposed a challenge for research on the structure of narcissism, recent models converge in a three-factor structure of agentic-extraverted, antagonistic, and neurotic aspects, capturing variance in different conceptualizations and correlates of narcissism. We construct and validate a German adaptation of the Five-Factor Narcissism Inventory (FFNI), a measure assessing these aspects based on the Five-Factor Model. In eight samples ( N = 2,921), we found the German FFNI to align with both, two- and three-factor models. The factors display good criterion validity with other narcissism measures, (non-)clinical personality dimensions, interpersonal styles, and (mal-)adaptive adjustment. Neurotic and antagonistic narcissism discriminated between individuals with/without mental disorder diagnoses, and displayed a characteristic profile in incarcerated offenders. Since the FFNI is comprehensive but long, we constructed a 30-item brief form (FFNI-BF) optimizing the internal structure and external validity using ant colony optimization. The FFNI-BF displayed good psychometric characteristics and similar, in certain aspects even advantageous criterion validity. We conclude that the German FFNI validly measures key aspects of narcissism, and the FFNI-BF captures these in a concise manner.
Description
This research was funded in whole, or in part, by the Austrian Science Fund (FWF) P 4344.
Date
2023
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Keywords
DARK TRIAD, Five-Factor Narcissism Inventory (FFNI), INITIAL CONSTRUCTION, MODEL, PATHOLOGICAL NARCISSISM, PERSONALITY-INVENTORY, PSYCHOMETRIC PROPERTIES, SCREENING MEASURE, VALIDITY, VERSION, VULNERABLE NARCISSISM, agentic narcissism, antagonistic narcissism, grandiose narcissism, narcissism, neurotic narcissism, vulnerable narcissism
Citation
Jauk, E, Olaru, G, Schürich, E, Back, M D & Morf, C 2023, 'Validation of the German five-factor narcissism inventory and construction of a brief form using ant colony optimization', Assessment, vol. 30, no. 4, pp. 969-997. https://doi.org/10.1177/10731911221075761