Browsing by Author "Lai, Ah-Fur"

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Item Attributes Analysis of Computer-based Test based on IRT
(2005)
Chen, Deng-Jyi
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Lai, Ah-Fur
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Chen, Shu-Ling
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資訊工程學系
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Department of Computer Science
The IRT (Item Response Theory) has been studied and applied in computer-based test for decades. However, almost of all these existing IRT studies pay their attentions only on test questions in text-based (or static text/graphic) type of presentation form. In this paper, The study proposed an IDEA model, develped test questions both in text-based and multimedia types of presentation form which have the same semantic meanings, and launched an experiment. This study analyzed the difference of item attributes (i.e., difficulty index, discriminatory power), item information and test score. The result indicated that the difficulty indexes of most interactive multimedia questions are less than those of their corresponding static text/graphic questions. But the static text/graphic presentation questions significantly have better discrimination power as compared with the interactive multimedia presentation questions.
The analysis of response patterns on IRT ability estimation methods in computerized adaptive test
(2007)
Chen, Deng-Jyi
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Lai, Ah-Fur
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Mao, Chia-Chi
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資訊工程學系
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Department of Computer Science
The main purpose of the study was to compare four ability estimation engines (which are OWEN, EAP, MLE, and WLE) regarding the convergent state and divergent state, and dynamic behaviors under different types of test-taker's response pattern in CAT.
The development of computerized two-tier diagnostic test and remedial learning system for elementary science learning
(2007)
Lai, Ah-Fur
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資訊工程學系
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Department of Computer Science
The main purposes of this study were to develop the web-based concept diagnostic and remedial system (Dr system for short), and conduct an elementary science learning experiment for evaluating its applicability.