Narcissistic Personality Inventory, NPI-40
Online version of Narcissistic Personality Inventory (NPI-40) the most widely utilized personality measures for non-clinical levels of the trait narcissism, developed by Robert Raskin and Howard Terry (1988). Shortened version NPI-16 by D. Ames et al. (2006) is also available.
- R. Raskin, H. Terry. A principal-components analysis of the Narcissistic Personality Inventory and further evidence of its construct validity // Journal of Personality and Social Psychology, 1988. 54
- Ames, D. R., Rose, P., Anderson, C. P. The NPI-16 as a short measure of narcissism // Journal of Research in Personality, 2006. 40