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The Narcissistic Personality Inventory: Applicability in a Swedish population sample
Author(s) -
Kansi Juliska
Publication year - 2003
Publication title -
scandinavian journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 72
eISSN - 1467-9450
pISSN - 0036-5564
DOI - 10.1046/j.1467-9450.2003.00365.x
Subject(s) - psychology , population , narcissism , psychometrics , personality assessment inventory , scale (ratio) , cronbach's alpha , clinical psychology , personality , social psychology , demography , physics , quantum mechanics , sociology
A Swedish translation of the 40‐item Narcissistic Personality Inventory (NPI) was mailed to 410 participants, aged 21–61 years, randomly sampled from the Swedish general population. The participation rate was 62%. The applicability of a previously published seven‐factor structure (Raskin & Terry) and a four‐factor structure (Emmons) was investigated. The factor structure found in the present in the Swedish sample corresponded better with Emmons's version. Therefore the four‐factor structure was chosen. Because the correspondence to Emmons's factor structure was not perfect, a revised NPI for Swedish use was constructed. The total scale score is usually used, although the Swedish NPI includes four subscales: Leadership/Power, Exhibitionism/Self‐admiration, Superiority/Arrogance, and Uniqueness/Entitlement. For the total scale, the internal consistency (Cronbach's alpha) was 0.80 and the test–retest correlation was 0.93. The total scale score correlated with self‐esteem as well as the interpersonal style and emotional aspects of psychopathy, supporting the validity of the scale.