The Narcissistic Personality Inventory: Applicability in a Swedish population sample

Narcissistic Traits and Executive Functions

Several personality disorders have been associated with cognitive impairment, including executive functions like working memory. Yet, it is unclear whether subclinical expression in non-clinical persons is associated with cognitive functioning. Recent studies indicate that non-clinical subjects might, in fact, perform better with increasing moderate to mild expressions of narcissistic features. We tested working memory performance in a cohort of n=70 psychiatrically and neurologically healthy subjects using Wechsler Adult Intelligence Scale (WAIS/WIE) subtests Arithmetic, Digit Span and Letter-Number Sequencing, and assessed narcissistic features using three different inventories: the widely used Narcissistic Personality Inventory (NPI), as well as two clinically used measures of narcissistic traits and states, respectively, derived from schema-focused therapy, i.e., the Young Schema Questionnaire (YSQ) entitlement/grandiosity subscale and the Schema Mode Inventory (SMI) self-aggrandizer subscale. In accordance with our hypothesis, we found nominally significant positive correlations of WIE Arithmetic performance with NPI total score (Spearman's rho=0.208; p=0.043) and SMI self-aggrandizer scale (Spearman's rho=0.231; p=0.027), but findings did not survive false discovery rate (FDR) adjustment for multiple comparisons (pFDR=0.189 and pFDR=0.243, respectively). While our findings add to recent studies on cognitive performance in subclinical narcissism, they fail to demonstrate an association of cognitive performance with narcissistic traits across multiple working memory tests, indicating the need for additional study, including complementary executive functions in larger cohorts and ranges of phenotype expression.

Exploring Brand Hate and the Association Between Similar Competitor Offer and Brand Equity: A Moderated-Mediation Model

Using the assumptions of Sternberg (2003) Duplex Theory of Hate, the present study reveals the combined effects of similar competitor offer and narcissistic personality on brand equity through the underlying mechanism of brand hate. Specifically, we hypothesize that brand hate mediates the relationship between similar competitor offer and brand equity. Moreover, we propose that similar competitor offer and brand hate relationship are stronger for narcissistic individuals. By employing a multi-wave time-lagged research design, we collected data from a sample of (N = 338) dairy product consumers in Pakistan. The findings of moderated-mediation regression analyses indicate that (a) Brand hate mediates the relationship between similar competitor offer and brand equity; and (b) Narcissistic personality moderates a similar competitor offer and brand hate relationship such that a high similar competitor offer led to greater brand hate when narcissism was high. Furthermore, conditional indirect effects reveal that brand hate mediates the relationship between similar competitor offer and brand equity only with individuals exhibiting narcissistic personality traits. The current study offers great insights to managers that by managing similar competitor offer, they can manage the development of brand hate, which can subsequently effect brand equity. Moreover, by profiling customers on the basis of their personalities, marketing managers can effectively invest only in customers with positive tendencies. The current study is unique in that it highlights new avenues in existing research by extending the nascent domain of brand hate in consumer-brand relationships.

Five-Factor Model Best Describes Narcissistic Personality Inventory Across Different Item Response Formats

The objective of this research was to validate the Narcissistic Personality Inventory across different response formats, given that several factor structures were proposed, ranging from two to seven factors. The original forced-choice format of the Narcissistic Personality Inventory was given to 410 participants and a modified, i.e., Likert format was given to 423 participants from the general population, along with personality and other narcissism measures. The results showed that the five-factor model proposed by Ackerman et al. had the best model fit in both response formats and that a distinction between adaptive (Leadership, Vanity, and Superiority) and some aspects of maladaptive (Manipulativeness and Exhibitionism) narcissism factors could be established. However, the redundancy of items in certain factors could be problematic and further improvements of the Narcissistic Personality Inventory should include more indicators of some proposed factors, especially of Vanity.

Development and Initial Validation of an Inconsistent Responding Scale for the Youth Psychopathic Traits Inventory

The Youth Psychopathic Traits Inventory (YPI) is widely used in research, but there currently exist no means to identify potentially invalid protocols resulting from careless or random responding. We describe the development of an inconsistent responding scale for the YPI using three archival samples of youths, including two from the United States (juvenile justice and middle school) and one from Germany (vocational training school). We first identified pairs of correlated YPI items and then created a total score based on the sum of the absolute value of the differences for each item pair. The resulting scale strongly differentiated between genuine protocols and randomly generated YPI data (n = 1,000) across samples (AUC values = .88-.92). It also differentiated between genuine protocols and those same protocols after 50% of the original YPI items were replaced with random data (AUCs = .77-.84). Scores on this scale also demonstrated fairly consistent patterns of association with theoretically relevant correlates.

Psychometric Properties of a French Version of the Narcissistic Personality Inventory in Young Adults

Abstract. The Narcissistic Personality Inventory (NPI) is widely used in social and personality psychology. The present study validates a French version of the NPI (NPI-Fr) for use with young adults. Respondents (N = 1275, Mage = 21.83, SD = 4.97) completed the NPI and two other convergent measures (Rosenberg Self-Esteem Scale and French version of the Big Five Inventory) for three validation steps. Exploratory factor analyses yielded evidence for a structure with either two (Power/Authority, Exhibitionism/Self-Admiration) or four (Leadership/Authority, Grandiosity/Exhibitionism, Special Person, Exploitativeness/Entitlement) first-order factors for the NPI. Confirmatory factor analyses supported the 33-item four-factor model, with moderate model fit indices (χ2/df = 2.04, RMSEA = .058, CFI = .90, GFI = .85). We found significant positive correlations (r = .11 to .44) with self-esteem, Extraversion, and Openness, and a negative correlation with Neuroticism (r = –.09 to –.21). There was high internal consistency, with a reliability coefficient of α = .73 to .93, while test–retest reliability at 4 weeks was satisfactory. Our results confirm the psychometric quality of the questionnaire for French young adults.

French Adaptation of the Narcissistic Personality Inventory in a Belgian French-Speaking Sample

The Narcissistic Personality Inventory (NPI) is the most widely used self-report scale to assess the construct of narcissism, especially in its grandiosity expression. Over the years, several factor models have been proposed in order to improve the understanding of the multidimensional aspect of this construct. The available data are heterogeneous, suggesting one to at least seven factors. In this study, we propose a French adaptation of the NPI submitted to a sample of Belgian French-speaking students (n = 942). We performed a principal component analysis on a tetrachoric correlation matrix to explore its factor structure. Unlike previous studies, our study shows that a first factor explains the largest part of the variance. Internal consistency is excellent and we reproduced the sex differences reported when using the original scale. Correlations with social desirability are taken into account in the interpretation of our results. Altogether, the results of this study support a unidimensional structure for the NPI using the total score as a self-report measure of the Narcissistic Personality Disorder in its grandiose form. Future studies including confirmatory factor analysis and gender invariance measurement are also discussed.

The Factor Structure and Construct Validity of the Short Version of the Youth Psychopathic Traits Inventory in Two Independent Samples of Nonreferred Adolescents

To assess the internal consistency, factor structure, and construct validity of the Italian translation of the Youth Psychopathic Traits Inventory–Short Version (YPI-S), both the YPI-S and its full version, the YPI, as well as self-reports of delinquency, aggression, and Big Five domains, were administered to two independent samples ( N = 868 and N = 881) of Italian community, nonreferred adolescents. The internal consistency of the YPI-S was adequate, and confirmatory factor analyses showed a good fit of the theoretical three-factor model of the YPI-S in both samples. Hierarchical regression models suggested the same pattern of associations with self-report measures of delinquency and aggression for the YPI-S and YPI, although the YPI was a better predictor of Big Five domains than the YPI-S. The findings support the internal consistency, factor validity, and construct validity of the YPI-S.

Is there an association between the level of grandiose narcissism severity of psychopathology?

BACKGROUND

Narcissism is a personality trait associated with both psychological health and resilience as well as with aggression and interpersonal problems.

AIM

This study compares levels of total narcissism and subscale scores in inpatients, outpatients and a community sample.

METHODS

Inpatients (N = 186) were recruited from consecutively admitted patients to two closed units, and the outpatient group (N = 144) consisted of patients attending a psychiatric outpatient clinic. The patients and a normative community sample (N = 437) all filled in the Narcissistic Personality Inventory questionnaire (NPI-29).

RESULTS

The NPI total and subscales scores showed considerable gender differences. Among men only the Uniqueness/Entitlement subscale showed significant group differences, with inpatients showing higher mean score than the two other groups. Among women three factors, Leadership/Power, Superiority/Arrogance, and Uniqueness/ Entitlement, showed significant differences between the different levels of psychopathology. The outpatient female group regularly had the lowest group mean scores. The NPI-29 scores of the normative group showed weak internal consistencies.

CONCLUSION

Our hypothesis of a significant association between mean levels of total narcissism and subscale scores and severity of psychopathology was not supported.

Perceived humiliation during admission to a psychiatric emergency service and its relation to socio-demography and psychopathology

BACKGROUND

There is a lack of empirical studies of patients' level of humiliation during the hospital admission process and its implications for the clinical setting. We wanted to explore associations between self-rated humiliation and socio-demography and psychopathology in relation to admission to a psychiatric emergency unit.

METHODS

Consecutively admitted patients (N = 186) were interviewed with several validated instruments. The patients self-rated humiliation by The Cantril Ladder, and 35% of the sample was defined as the high humiliation group.

RESULTS

Final multivariate analysis found significant associations between compulsory admission, not being in paid work, high scores on hostility, and on entitlement, and high levels of humiliation. No significant interactions were observed between these variables, and the narcissism score was not a confounder concerning humiliation.

CONCLUSIONS

High level of humiliation during the admission process was mainly related to patient factors, but also to compulsory admission which should be avoided as much as possible protecting the self-esteem of the patients.

Debates on the narcissism conundrum: trait, domain, dimension, type, or disorder?

The clinical implications of the term narcissism are a matter of continuous debate. This article critically examines pertinent literature of the last 12 years using a set of validators and attempting to identify narcissism as a trait, a domain, a dimension, or a personality disorder/type. Narcissistic personality disorder (NPD)-specific literature (particularly in epidemiological, developmental, and laboratory-testing areas) is scarce when compared with other personality disorders. A tendency to ideologically dominated clinical reports is observed with individual cases or small samples of nonclinical populations. Clinical descriptions of the condition vary within a wide range of descriptors, superficial or ambiguous conceptualizations, different subtypes, and inconclusive meta-analytical findings. Comorbidity with many Axes I and II conditions and the presence of narcissistic behavioral and emotional manifestations in other DSM conditions were frequent findings. The reintroduction of NPD in the personality disorders DSM-5 proposal seems to be related to nonclinical or heuristic considerations. It is concluded that NPD as such shows nosological inconsistency and that its consideration as a trait domain with needed further research would be strongly beneficial to the field.

A study of outcome in patients treated at a psychiatric emergency unit

BACKGROUND

Although being an important part of the psychiatric treatment chain, there are few outcome studies of treatment at psychiatric emergency units (PEU).

AIMS

The aim was to measure changes in psychopathology and humiliation during admission at a PEU.

METHODS

The sample consisted of 147 patients examined at admission and discharge. The instruments used were the Brief Psychiatric Rating Scale (BPRS), the Narcissistic Personality Inventory-29 (NPI-29), the Hospital Anxiety and Depression Scale (HADS), a combination of questions measuring negative experiences and Cantril's ladder measuring experienced humiliation. Outcome measures were clinically significant improvement [>10% reduction of the BPRS converted (0-100) score] and changes on the other instruments.

RESULTS

Median hospitalization time was 13 days (mean 20.4 days). Fifty-six per cent of the patients showed clinical significant improvement (95% CI 48-64%), 42% showed some degree of improvement and 2% were unchanged. The more improved patients had higher scores at admission than those with less improvement on all scales, indicating a floor effect. Small changes were observed for narcissism and experienced humiliation and negative admission events. In multivariate analyses high admission scores on BPRS subscales, thinking disorder and activation and HADS total score were significantly associated with clinically significant improvement. Type and length of admission did not significantly affect the outcome. The BPRS, HADS and NPI-29 scores at discharge were mainly explained by corresponding admission scores.

CONCLUSIONS

More than half the patients admitted to PEU have clinically significant reduction of psychopathology during their stay. Higher levels of psychopathology at admission were significantly associated with improvement. Negative admission experiences and involuntary admission did not influence outcome.

Narcissistic Behaviour and the Successful Conservation of Ambivalence

Central to narcissistic behaviour is the tendency to elicit admiration from others, but it is done in such a high-handed way that these same others are, in time, alienated from the narcissist. This is widely thought to be due to some internal deficit in the narcissist psyche which leads them to fail at what is to them of utmost importance. This paper uses a social rather than an intrapsychic perspective to question the failure hypothesis and to show by means of self-organization theory that the apparent failure can be seen as part of a goal-directed way of conserving an ambivalent autonomy or identity. Narrative descriptions are presented for two cases of female narcissism to illustrate how narcissistic behaviour operates differently in different cases in order to conserve successfully and simultaneously both poles of an ambivalent autonomy.

Development and Tests of Short Versions of the Youth Psychopathic Traits Inventory and the Youth Psychopathic Traits Inventory-Child Version

The adolescent Youth Psychopathic Traits Inventory (YPI) and its child version (YPI-CV) are sound but lengthy instruments for measuring psychopathic traits in youths. The current study develops psychometrically strong short versions of these instruments. Samples used for item reduction were community samples of adolescents (n = 2105, age 16–19, 49% boys) and children (n = 360, age 9–12, 52% boys). Stepwise parallel reduction using principal components analyses and content-related arguments resulted in two highly similar short instruments of 18 items each. In both versions, near identical and theoretically comprehensible three factor structures were demonstrated, which were crossvalidated in independent samples (CFI = .97 and .97; RMSEA = .044 and .038, respectively). Results were similar for boys and girls. The short instruments were reliable (Cronbach’s αs of .85 and .83) and covered all core characteristics of the psychopathic personality construct. The short versions showed a high convergence with the original long instruments (r = .95 and .93, respectively) and similar correlations to external criterion measures of conduct problems. Therefore, the abbreviated versions are practical and valid alternatives for the original YPIs when administration time is limited.

The Validity of the Psychopathic Personality Inventory—Revised in a Community Sample

Research on the Psychopathic Personality Inventory—Revised (PPI-R) has revealed two factors: Fearless Dominance, and Self-Centered Impulsivity. This study examined the validity of these PPI-R factors in a community sample ( N = 675). First, confirmatory factor analyses did not support the two-factor structure. Second, the PPI-R factors showed good convergent and discriminant validity with two other self-report measures of psychopathy, that is, the Youth Psychopathic Traits Inventory and Levenson’s Self-Report of Psychopathy. Third, PPI-R factors exhibited good external validity in relation to various theoretically relevant correlates. The results indicate that the PPI-R factors have good convergent, discriminant, and external validity, but confirmatory factor analysis raises concerns about the robustness of the two-factor structure.

Narcissistic Personality Inventory: structure of the adapted Dutch version

The present study examined the structure of a Dutch adaptation of the 40-item Narcissistic Personality Inventory (Raskin & Terry, 1988) in a community sample (n = 460) and a student sample (n = 515). Altering the response format of the NPI to a Likert-scale had no apparent effect on the responses. Confirmatory factor analyses supported neither the four-factor structure reported by Emmons (1984), nor the seven-factor structure reported by Raskin and Terry (1988). Instead, exploratory factor analyses supported either a single-factor solution (general narcissism), or a two-factor solution (Authority/Power and Self-Admiration). The validity of the NPI was supported by its relations with sex, age, personality, self-esteem, shame, guilt and social desirability.

Measuring psychopathic traits in children through self-report. The development of the Youth Psychopathic Traits Inventory-Child Version

The current article investigates whether self-reports of children provide reliable and valid information concerning psychopathic personality traits and behaviours. For this purpose, we developed a downward extension of an existing adolescent self-report measure; the Youth Psychopathic traits Inventory [YPI; Andershed, H., Kerr, M., Stattin, H., & Levander, S. (2002). Psychopathic traits in non-referred youths: Initial test of a new assessment tool. In E.S. Blaauw, L. (Ed.), Psychopaths: Current international perspectives (pp. 131-158): The Hague: Elsevier], called the Youth Psychopathic traits Inventory-Child Version (YPI-CV). The reliability and validity of the YPI-CV were tested in n=360 children from the general population. The YPI-CV had good internal consistency and a three factor structure similar to the original adolescent version. Test-retest reliability over a 6-month period was adequate. In validating the instrument, both self, teacher and peer report were used. The convergent and divergent validity of the three YPI-CV dimensions was examined by relating each of them to an external criterion measures assessing the same construct. It was concluded that psychopathic traits can be measured reliably and meaningfully through self-report in 9 to 12 year olds and that the YPI-CV is potentially a useful instrument for doing so.

Narcissism in patients admitted to psychiatric acute wards: its relation to violence, suicidality and other psychopathology

BACKGROUND

The objective was to examine various aspects of narcissism in patients admitted to acute psychiatric wards and to compare their level of narcissism to that of an age- and gender-matched sample from the general population (NORM).

METHODS

This cross-sectional study interviewed 186 eligible acute psychiatric patients with the Brief Psychiatric Rating Scale (BPRS) and the Global Assessment of Functioning (GAF). The patients filled in the Narcissistic Personality Inventory-21 item version (NPI-21), The Hospital Anxiety and Depression Scale (HADS) and the Rosenberg Self-Esteem Scale. High and low narcissism was defined by the median of the total NPI-21 score. An age- and gender-matched control sample from the general population also scored the NPI-21 (NORM).

RESULTS

Being male, involuntary admitted, having diagnosis of schizophrenia, higher self-esteem, and severe violence were significantly associated with high narcissism, and so were also low levels of suicidality, depression, anxiety and GAF scores. Severe violence and high self-esteem were significantly associated with high narcissism in multivariable analyses. The NPI-21 and its subscales showed test-retest correlations >/=0.83, while the BPRS and the HADS showed lower correlations, confirming the trait character of the NPI-21. Depression and suicidality were negatively associated with the NPI-21 total score and all its subscales, while positive association was observed with grandiosity. No significant differences were observed between patients and NORM on the NPI-21 total score or any of the NPI subscales.

CONCLUSION

Narcissism in the psychiatric patients was significantly associated with violence, suicidality and other symptoms relevant for management and treatment planning. Due to its trait character, use of the NPI-21 in acute psychiatric patients can give important clinical information. The similar level of narcissism found in patients and NORM is in need of further examination.