Tsang Siny, Schmidt Karen M, Vincent Gina M, Salekin Randall T, Moretti Marlene M, Odgers Candice L
Department of Psychology, University of Virginia.
Department of Psychiatry, University of Massachusetts Medical School.
Personal Disord. 2015 Jan;6(1):22-31. doi: 10.1037/per0000094.
This study used an item response theory (IRT) model and a large adolescent sample of justice involved youth (N = 1,007, 38% female) to examine the item functioning of the Psychopathy Checklist-Youth Version (PCL: YV). Items that were most discriminating (or most sensitive to changes) of the latent trait (thought to be psychopathy) among adolescents included "glibness/superficial charm," "lack of remorse," and "need for stimulation," whereas items that were least discriminating included "pathological lying," "failure to accept responsibility," and "lacks goals." The items "impulsivity" and "irresponsibility" were the most likely to be rated high among adolescents, whereas "parasitic lifestyle," and "glibness/superficial charm" were the most likely to be rated low. Evidence of differential item functioning (DIF) on 4 of the 13 items was found between boys and girls. "Failure to accept responsibility" and "impulsivity" were endorsed more frequently to describe adolescent girls than boys at similar levels of the latent trait, and vice versa for "grandiose sense of self-worth" and "lacks goals." The DIF findings suggest that 4 PCL: YV items function differently between boys and girls.
本研究使用项目反应理论（IRT）模型和大量涉及司法的青少年样本（N = 1007，38%为女性）来检验《青少年版心理变态量表》（PCL: YV）的项目功能。在青少年中，对潜在特质（被认为是心理变态）区分度最高（或对变化最敏感）的项目包括“油嘴滑舌/表面魅力”“缺乏悔恨”和“需要刺激”，而区分度最低的项目包括“病态说谎”“不承担责任”和“缺乏目标”。“冲动性”和“不负责任”在青少年中最有可能被评为高分，而“寄生生活方式”和“油嘴滑舌/表面魅力”最有可能被评为低分。在13个项目中的4个项目上发现了男孩和女孩之间存在项目功能差异（DIF）的证据。在潜在特质水平相似的情况下，“不承担责任”和“冲动性”用于描述青少年女孩比男孩更频繁，反之，“夸大的自我价值感”和“缺乏目标”用于描述男孩比女孩更频繁。DIF的研究结果表明，PCL: YV的4个项目在男孩和女孩之间功能不同。
