Ackerman Robert A, Donnellan M Brent, Roberts Brent W, Fraley R Chris
The University of Texas at Dallas, Richardson, TX, USA
Texas A & M University, College Station, TX, USA.
Assessment. 2016 Apr;23(2):203-20. doi: 10.1177/1073191114568113. Epub 2015 Jan 23.
The Narcissistic Personality Inventory (NPI) is currently the most widely used measure of narcissism in social/personality psychology. It is also relatively unique because it uses a forced-choice response format. We investigate the consequences of changing the NPI's response format for item meaning and factor structure. Participants were randomly assigned to one of three conditions: 40 forced-choice items (n = 2,754), 80 single-stimulus dichotomous items (i.e., separate true/false responses for each item; n = 2,275), or 80 single-stimulus rating scale items (i.e., 5-point Likert-type response scales for each item; n = 2,156). Analyses suggested that the "narcissistic" and "nonnarcissistic" response options from the Entitlement and Superiority subscales refer to independent personality dimensions rather than high and low levels of the same attribute. In addition, factor analyses revealed that although the Leadership dimension was evident across formats, dimensions with entitlement and superiority were not as robust. Implications for continued use of the NPI are discussed.
自恋人格问卷（NPI）目前是社会/人格心理学中使用最广泛的自恋测量工具。它也相对独特，因为它采用了强制选择的回答格式。我们研究了改变NPI的回答格式对项目含义和因素结构的影响。参与者被随机分配到三种条件之一：40个强制选择项目（n = 2754）、80个单刺激二分项目（即每个项目分别进行是/否回答；n = 2275）或80个单刺激评定量表项目（即每个项目采用5点李克特式回答量表；n = 2156）。分析表明，权利和优越感子量表中的“自恋”和“非自恋”回答选项指的是独立的人格维度，而不是同一属性的高低水平。此外，因素分析显示，虽然领导维度在各种格式中都很明显，但权利和优越感维度并不那么稳健。本文讨论了继续使用NPI的意义。
