2026-09-21T12:54:10Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/105274 2023-07-11 col_2142_5131 col_2142_8800 com_2142_5130 com_2142_5132

Zhang, Jinming Anderson, Carolyn Kern, Justin Tang, Xiuxiu 2019-08-23T20:48:28Z 2019-08-23T20:48:28Z 2021-08-24T09:15:38Z 2019-04-26 2019-05 Cognitive Diagnostic Models (CDMs) are frequently used in the second language proficiency exams to analyze test takers’ strengths and weaknesses. This study retrofits a CDM known as the Fusion model onto a non-diagnostic test data from the reading comprehension test of the Test of Practical Chinese (C.TEST). It focuses on the construction and modification of the Q-matrix which specifies the relationship between test items and attributes needed to answer each item correctly. There are three stages in this study: (1) identifying reading attributes, (2) constructing the initial Q-matrix, and (3) modifying the initial Q-matrix. In the first stage, six reading attributes were identified based on literature review and 3 experts’ judgment. In the second stage, test items were carefully reviewed by three experts, and then the initial Q-matrix was created by them. In the third stage, item parameters and model fit statistics were evaluated to refine the Q-matrix. Four item parameters, r11.3, c2, c6, c27, were dropped from the Fusion model. Results suggest that the refined Q-matrix is well-defined, and it can be applied to the C.TEST reading test since it has a good model fit and is able to effectively distinguish item masters from item non-masters. Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2021-05-01 The student, Xiuxiu Tang, accepted the attached license on 2019-04-26 at 08:22. The student, Xiuxiu Tang, submitted this Thesis for approval on 2019-04-26 at 08:24. This Thesis was approved for publication on 2019-04-26 at 10:25. DSpace SAF Submission Ingestion Package generated from Vireo submission #13941 on 2019-08-22 at 16:24:02 Made available in DSpace on 2019-08-23T20:48:28Z (GMT). No. of bitstreams: 2 TANG-THESIS-2019.pdf: 463490 bytes, checksum: 85dea6c81c9327abe5405e66e0fc509f (MD5) LICENSE.txt: 4208 bytes, checksum: 71e8c9d18412a1db56ac56a38b3274b7 (MD5) Previous issue date: 2019-04-26 Embargo set by: Seth Robbins for item 112396 Lift date: 2021-08-23T20:48:32Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Limited Restriction Lifted for Item 112396 on 2021-08-24T09:15:38Z. application/pdf http://hdl.handle.net/2142/105274 en Copyright 2019 Xiuxiu Tang CDM Q-matrix The application of a cognitive diagnostic model on the test of practical Chinese text text Educational Psychology Educational Psychology University of Illinois at Urbana-Champaign Thesis M.S.