计算机化自适应测试中控制项目位置效应的方法研究

IF 2.7 4区 教育学 Q1 EDUCATION & EDUCATIONAL RESEARCH
Ye Ma, Deborah J. Harris
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引用次数: 0

摘要

项目位置效应(IPE)是指当一个项目在测试中的不同位置进行管理时,其表现不同的情况。以往的研究大多集中在线性测试下的IPE研究。适应性测试下的IPE研究缺乏。此外,IPE的存在可能违反了项目反应理论(IRT)的项目参数不变性假设,这有利于IRT在计算机化自适应测试(CAT)等各种心理测量任务中的应用。忽略IPE可能会导致诸如在CAT中不准确的能力估计等问题。本文扩展了IPE的研究,通过模拟研究提出并评估了在项目级计算机自适应测试下控制位置效应的方法。结果表明,与不调整(基线法)和项目水平调整(方法2)相比,通过预测设计(方法3)或池设计(方法4)调整IPE的能力估计精度更高。并讨论了每种方法的实际意义以及未来的研究方向。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigating Approaches to Controlling Item Position Effects in Computerized Adaptive Tests

Item position effect (IPE) refers to situations where an item performs differently when it is administered in different positions on a test. The majority of previous research studies have focused on investigating IPE under linear testing. There is a lack of IPE research under adaptive testing. In addition, the existence of IPE might violate Item Response Theory (IRT)’s item parameter invariance assumption, which facilitates applications of IRT in various psychometric tasks such as computerized adaptive testing (CAT). Ignoring IPE might lead to issues such as inaccurate ability estimation in CAT. This article extends research on IPE by proposing and evaluating approaches to controlling position effects under an item-level computerized adaptive test via a simulation study. The results show that adjusting IPE via a pretesting design (approach 3) or a pool design (approach 4) results in better ability estimation accuracy compared to no adjustment (baseline approach) and item-level adjustment (approach 2). Practical implications of each approach as well as future research directions are discussed as well.

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来源期刊
CiteScore
3.90
自引率
15.00%
发文量
47
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