Azwar, Saifuddin and Ridho, Ali (2013) Abilitas Komposit dalam Tes Potensi. Jurnal Psikologi, 40 (2). pp. 127-142. ISSN 0215-8884
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Abstract
When a unidimensionality assumption has been actually violated, interpretation of test scores might be jeopardized. It couldn’t be overemphasized in case of high-stake exams such as PAPs UGM (academic potentiality test for UGM graduate student candidates) which was supposed to reflect a composite ability. This study aimed at revealing item characteristics of PAPs A-1 Series based on UIRT and MIRT and discovering dimensionality of the three subtests of the test. Scores of subject (n=2035) on the 3 subtests were analysed and the results showed that 27 items (10 of Verbal, 8 of Kuantitatif, and 9 of Penalaran) were flagged for having r bis of less than 0.25 and 6 other items for having abnormally high pseudo-guessing parameters. Dimensionality analyses found out that Penalaran subtest was local-dependent while Verbal and Kuantitatif subtests both were local-independent. In addition, MIRT analyses failed to fully describe item characteristics of the test due to effect of interaction among probabilities of correct response of the three subtests.
Item Type: | Journal Article |
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Keywords: | dimensionality; PAPs UGM; MIRT; UIRT |
Subjects: | 17 PSYCHOLOGY AND COGNITIVE SCIENCES > 1701 Psychology > 170103 Educational Psychology |
Divisions: | Faculty of Psychology |
Depositing User: | Dr. Ali Ridho |
Date Deposited: | 30 Apr 2017 06:27 |
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