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Direct linkStewart, John; Drury, Byron; Wells, James; Adair, Aaron; Henderson, Rachel; Ma, Yunfei; Perez-Lemonche, Ángel; Pritchard, David – Physical Review Physics Education Research, 2021
This study reports an analysis of the Force Concept Inventory (FCI) using item response curves (IRC)--the fraction of students selecting each response to an item as a function of their total score. Three large samples (N = 9606, 4360, and 1439) of calculus-based physics students were analyzed. These were drawn from three land-grant institutions…
Descriptors: Physics, Science Instruction, Scientific Concepts, Item Response Theory
