Narcissistic Personality Inventory (NPI-40)

Background

The Narcissistic Personality Inventory (NPI-40) is one of the most widely used self-report measures of narcissistic personality traits in non-clinical populations. The assessment measures traits associated with grandiosity, entitlement, authority, superiority, self-admiration, and interpersonal dominance. The NPI-40 is based on a dimensional understanding of narcissistic traits rather than a clinical diagnosis of Narcissistic Personality Disorder (NPD). Many individuals may display certain narcissistic characteristics without meeting the criteria for a personality disorder. The assessment is frequently used in psychological research, personality studies, and self-reflection contexts to explore patterns of confidence, leadership, self-image, social influence, and attention-seeking behavior.

Procedure

Read each pair of statements carefully and select the statement that best describes you. There are no right or wrong answers. Choose the option that feels most accurate to your personality and typical behavior.

Participation

This assessment is intended for educational and self-reflection purposes only and does not provide a clinical diagnosis. Results should be interpreted within the broader context of personality and behavior.

Scoring & Interpretation

Each narcissistic response receives 1 point and non-narcissistic responses receive 0 points. Higher scores may indicate stronger narcissistic personality traits. This assessment is designed for personality exploration and research use.

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Translations

Narcissistic Personality Inventory (NPI-40) is available in English only.

Changelogs

v1.0 — Initial integration of the Narcissistic Personality Inventory (NPI-40) into the Deenz Psychometric Scale Engine Pro.
v1.1 — Added dimensional categorization including Authority, Superiority, Exhibitionism, Entitlement, Self-Sufficiency, and Manipulativeness.
v1.2 — Implemented forced-choice questionnaire structure with binary scoring (0–1).
v1.3 — Added section-based grouping such as Leadership, Appearance, Attention Seeking, Grandiosity, and Interpersonal domains.
v1.4 — Improved frontend questionnaire readability by removing visible “A.” and “B.” prefixes from answer choices.
v1.5 — Added support for dimensional analysis, percentage-based interpretation, and professional report generation.
v1.6 — Enhanced compatibility with translation system and multilingual assessment formatting.

Sources

1. Robert Raskin , et al. A Narcissistic Personality Inventory . Psychological Reports . 1979 . https://doi.org/10.2466/pr0.1979.45.2.590
2. Robert Raskin , et al. A Principal-Components Analysis of the Narcissistic Personality Inventory and Further Evidence of Its Construct Validity . Journal of Personality and Social Psychology . 1988 . https://doi.org/10.1037/0022-3514.54.5.890