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The narcissistic personality inventory: a self-report measure for quantitative researches on non-clinical samples
Author/s: Pier Luigi Baldi, Marisa Giorgetti 
Year:  2016 Issue: Language: Italian 
Pages:  38 Pg. 517-554 FullText PDF:  300 KB
DOI:  10.3280/RIP2016-004004
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The aim of this research was the comparison between the data of two studies, both based on the application of the Narcissistic Personality Inventory Scale (NPI) to samples of undergraduate students. The first sample (Baldi, 1998) consisted of 800 students, aged between 19 and 24, equally divided by gender, University and Faculty; the second one was recently conducted on a number of participants almost equal to the previous (808 students, aged between 18 and 25), with the same stratification by gender and Faculty. The Narcissistic Personality Inventory uses behavioural criteria as defined by American Psychiatric Association in the "Diagnostic and Statistical Manual of Mental Disorders" (3rd ed.) (DSM-II1) to evaluate narcissistic personality and also used by DSM-IV. The "narcissistic personality disorder" was later counted among the "personality disorders" by DSM-5. The data analysis show the following results: 1) a four-factor structure is confirmed, as previously reported by other authors (see, e.g., Emmons, 1984, 1987); 2) some items, which are saturated in the first or in the second factors are different in our two surveys: however in both of them the mostly saturated items in the first component (which accounts for the greatest percentage of variance), refer to exploitation and/or manipulation personality traits; 3) similar findings in relation to gender differences and Faculty are observed in our studies: males are more disposed to adopt narcissistic attitudes and behaviors; students of Law, both men and women, report higher scores of "narcissism" than students of Humanities, whose scores are lower than those of all the other Faculties.
Keywords: Personality, narcissism, measure, undergraduate students.

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Pier Luigi Baldi, Marisa Giorgetti, The narcissistic personality inventory: a self-report measure for quantitative researches on non-clinical samples in "RICERCHE DI PSICOLOGIA " 4/2016, pp. 517-554, DOI:10.3280/RIP2016-004004


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