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Download full textPaul J. Walter; Edward Nuhfer; Crisel Suarez – Numeracy, 2021
We introduce an approach for making a quantitative comparison of the item response curves (IRCs) of any two populations on a multiple-choice test instrument. In this study, we employ simulated and actual data. We apply our approach to a dataset of 12,187 participants on the 25-item Science Literacy Concept Inventory (SLCI), which includes ample…
Descriptors: Item Analysis, Multiple Choice Tests, Simulation, Data Analysis
