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Direct linkArendasy, Martin; Sommer, Markus; Ponocny, Ivo – Cognition and Instruction, 2005
Simple arithmetic word problems are often featured in elementary school education. One type of problem, "compare with unknown reference set," ranks among the most difficult to solve. Differences in item difficulty for compare problems with unknown reference set are observed depending on the direction of the relational statement (more than vs. less…
Descriptors: Psychometrics, Arithmetic, Word Problems (Mathematics), Item Response Theory
