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构建正确的认知模型是成功进行认知诊断的关键之一,如果认知诊断测验不能完整准确地代表这个认知模型,这个测验的效度就存在问题。属性及其层级可以表示一个认知模型。在认知模型正确基础上,给出了一个计量公式以衡量认知诊断测验能够多大程度上代表认知模型;对于不止包含一个知识状态的等价类及其形成原因进行了分析,对Cui等人的属性层级相合性指标(HCI)提出修改建议,以更好地探查数据与专家给出的认知模型的一致性。
Building a correct cognitive model is one of the keys to successful cognitive diagnosis. If the cognitive diagnostic test can not completely and accurately represent the cognitive model, the validity of this test is not valid. Attributes and their levels can represent a cognitive model. Based on the correct cognitive model, a measurement formula is given to measure the extent to which cognitive tests can represent the cognitive model. For equivalence classes that contain not only one state of knowledge but also their causes, Cui et al. The Human Attributes Hierarchy Consistency Indicator (HCI) proposes changes to better align the data with the cognitive model given by the expert.