高阶IRT模型——项目反应理论的新进展  

Higher-Order IRT Model: New Development of Item Response Theory

作　　者：潘浩[1] 

机构地区：[1]辽宁医学院国际教育学院

出　　处：《考试研究》2014年第2期59-63,共5页Examinations Research

摘　　要：早期的单维IRT模型忽视了测验多维性的可能,而多维IRT模型对各维度的划分不够明确,不能很好地反映各维度能力的内涵。高阶IRT模型承认测验的多维性,以分测验划分维度,同时又将多个维度的能力统一到一个高阶的能力中,能够在了解被试各维度的能力同时,为被试提供整体的能力估计,它能更好地反映实际,并且适应大规模测验的需求。Item Response Theory （IRT） is a well known theory which can reflect the relationship between latent trait and items. However, both uni-dimensional IRT model and multi-dimensional IRT model are short at reflecting ability structure precisely and appropriately. The Higher-Order IRT （ H-O IRT） model is a muhi-unidimensional model that uses in-test collateral information and represents it in the co-relational structure of the domains through a higher-order latent trait formulation. H - O IRT model can provide both domain and the whole information, which is better fulfilling the needs of large-scale tests.

关 键 词：高阶IRT 多维IRT 单维IRT 

分 类 号：G424.74[文化科学—课程与教学论]