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Peer reviewedCrehan, Kevin D.; And Others – Educational and Psychological Measurement, 1993
Studies with 220 college students found that multiple-choice test items with 3 items are more difficult than those with 4 items, and items with the none-of-these option are more difficult than those without this option. Neither format manipulation affected item discrimination. Implications for test construction are discussed. (SLD)
Descriptors: College Students, Comparative Testing, Difficulty Level, Distractors (Tests)
