The Ohio State University, USA.
J Health Psychol. 2020 Nov-Dec;25(13-14):2388-2395. doi: 10.1177/1359105318800788. Epub 2018 Sep 19.
The Everyday Discrimination Scale (EDS) is a widely used measure of discrimination. Rasch analysis was used to examine the psychometric properties of the EDS based on a national sample ( = 2666). Items largely fit the Rasch model and yielded excellent separation and item reliability. However, severe floor effects were observed. Implications are discussed for use of the scale in populations that experience low levels of discrimination. An ordinal-to-interval conversion table for the EDS is also provided.
日常歧视量表（EDS）是一种广泛使用的歧视衡量工具。本研究基于全国性样本（n=2666），采用项目反应理论中的 Rasch 分析方法，对 EDS 的心理测量学特性进行了检验。量表条目基本符合 Rasch 模型，具有良好的区分度和条目信度。然而，量表存在严重的地板效应。本研究讨论了在歧视程度较低的人群中使用该量表的影响，并提供了 EDS 的有序到区间转换表。
