Department of Mental Health Law and Policy, Florida Mental Health Institute, College of Behavioral and Community Sciences, University of South Florida, Tampa, FL 33624, USA.
Personal Disord. 2013 Apr;4(2):145-51. doi: 10.1037/a0028751. Epub 2012 Nov 12.
This study reports a Rasch model analysis of psychopathic trait measures of fearless dominance and impulsive antisociality (Witt et al., 2010). Through use of secondary data analysis (N = 200), these scales were evaluated to determine whether they provided effective dimensional measurement evidenced by a) one-dimensional structure, b) broad targeting of the latent dimensions, and c) invariance across men and women. Only fearless dominance achieved an invariant one-dimensional structure after slight modification. Both fearless dominance and impulsive antisociality had a restricted range in targeting of the latent trait dimensions. With one exception, scale items did not exhibit differential item functioning across men and women. Implications of the results are discussed within the context of Rasch analysis and the conceptualization of psychopathy.
本研究报告了无畏支配和冲动反社会特质测量的 Rasch 模型分析（Witt 等人，2010 年）。通过使用二次数据分析（N=200），评估了这些量表，以确定它们是否提供了有效的维度测量证据，具体表现在：a）一维结构，b）潜在维度的广泛定位，以及 c）男性和女性之间的不变性。只有无畏支配在进行轻微修改后才实现了不变的一维结构。无畏支配和冲动反社会行为在潜在特质维度的定位上都有一定的局限性。除了一个例外，量表项目在男性和女性之间没有表现出不同的项目功能。结果的意义在 Rasch 分析和精神病理学的概念化背景下进行了讨论。
