Li Nan, Hein Sascha, Cavitt Joslyn, Chapman John, Foley Geib Catherine, Grigorenko Elena L
University of Houston, Houston, TX, USA.
Freie Universität Berlin, Berlin, Germany.
Assessment. 2023 Dec;30(8):2373-2386. doi: 10.1177/10731911221146120. Epub 2023 Jan 19.
This study investigated item- and test-level functioning of the Structured Assessment of Violence Risk in Youth (SAVRY) and differential item functioning (DIF) across gender and race/ethnicity in justice-involved youth (JIY) using item response theory analysis. Participants were 868 JIY (23.7% female; 26.9% White, 50.9% Black, and 22.2% Hispanic) in pre-trial detention centers in Connecticut. Results obtained from the application of the graded response model showed that the SAVRY items were not equally discriminating JIY with varying levels of the latent trait, with "Poor compliance" as the most discriminating item and "History of self-harm or suicide attempts" as the least discriminating item. At the test level, the SAVRY provided precise (reliable) information about the latent trait for the majority of JIY whose latent trait between two standard deviations below and above the mean. Results of DIF revealed that six items operated inconsistently between White, Black, and Hispanic JIY, among which two items also functioned differentially across gender.
本研究采用项目反应理论分析，调查了青少年暴力风险结构化评估量表（SAVRY）在项目和测验水平上的功能，以及司法涉入青少年（JIY）中不同性别和种族/族裔之间的项目功能差异（DIF）。研究参与者为康涅狄格州审前拘留中心的868名司法涉入青少年（23.7%为女性；26.9%为白人，50.9%为黑人，22.2%为西班牙裔）。应用等级反应模型得到的结果表明，SAVRY项目对具有不同潜在特质水平的司法涉入青少年的区分能力并不相同，其中“依从性差”是区分能力最强的项目，“自残或自杀未遂史”是区分能力最弱的项目。在测验水平上，对于大多数潜在特质在均值上下两个标准差之间的司法涉入青少年，SAVRY能够提供关于潜在特质的精确（可靠）信息。项目功能差异分析结果显示，有六个项目在白人、黑人和西班牙裔司法涉入青少年之间的运作不一致，其中两个项目在不同性别之间的功能也存在差异。
