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Predicting Item Difficulty of Science National Curriculum Tests: The Case of Key Stage 2 Assessments
Peer reviewed
Direct linkEl Masri, Yasmine H.; Ferrara, Steve; Foltz, Peter W.; Baird, Jo-Anne – Curriculum Journal, 2017
Predicting item difficulty is highly important in education for both teachers and item writers. Despite identifying a large number of explanatory variables, predicting item difficulty remains a challenge in educational assessment with empirical attempts rarely exceeding 25% of variance explained. This paper analyses 216 science items of key stage…
Descriptors: Predictor Variables, Test Items, Difficulty Level, Test Construction
