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Padilla, Jose Luis; Hidalgo, M. Dolores; Benitez, Isabel; Gomez-Benito, Juana – Psicologica: International Journal of Methodology and Experimental Psychology, 2012
The analysis of differential item functioning (DIF) examines whether item responses differ according to characteristics such as language and ethnicity, when people with matching ability levels respond differently to the items. This analysis can be performed by calculating various statistics, one of the most important being the Mantel-Haenszel,…
Descriptors: Foreign Countries, Test Bias, Computer Software, Computer Software Evaluation
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Ali, Liaqat; Hatala, Marek; Gasevic, Dragan; Jovanovic, Jelena – Computers & Education, 2012
LOCO-Analyst is a learning analytics tool we developed to provide educators with feedback on students learning activities and performance. Evaluation of the first version of the tool led to the enhancement of the tool's data visualization, user interface, and supported feedback types. The second evaluation of the improved tool allowed us to see…
Descriptors: Feedback (Response), Computer Software, Program Descriptions, Student Evaluation
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Yen, Yung-Chin; Ho, Rong-Guey; Chen, Li-Ju; Chou, Kun-Yi; Chen, Yan-Lin – Educational Technology & Society, 2010
The purpose of this study was to examine whether the efficiency, precision, and validity of computerized adaptive testing (CAT) could be improved by assessing confidence differences in knowledge that examinees possessed. We proposed a novel polytomous CAT model called the confidence-weighting computerized adaptive testing (CWCAT), which combined a…
Descriptors: Foreign Countries, English (Second Language), Second Language Learning, Item Response Theory
Tomaiuolo, Nicholas G.; Packer, Joan G. – Computers in Libraries, 1996
Describes a study of the retrieval results of World Wide Web search engines. Research quantified accurate matches versus matches of arguable quality for 200 subjects relevant to undergraduate curricula. Both "evaluative" engines (Magellan, Point Communications) and "nonevaluative" engines (Lycos, InfoSeek, AltaVista) were…
Descriptors: Automatic Indexing, Comparative Analysis, Computer Software Evaluation, Evaluation Research