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Peer reviewedHsu, Louis M. – Educational and Psychological Measurement, 1980
Relative difficulty of Separate (Form S) and Grouped (Form G) True-False tests may be expected to be dependent on the ability levels of examinees. At some levels Form S should be less difficult, at others equally difficult, and at still others, more difficult, than Form G. (Author/RL)
Descriptors: Academic Ability, Cluster Grouping, Difficulty Level, Knowledge Level
