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Download full textSaunders, Joseph C.; Huynh, Huynh – 1980
In most reliability studies, the precision of a reliability estimate varies inversely with the number of examinees (sample size). Thus, to achieve a given level of accuracy, some minimum sample size is required. An approximation for this minimum size may be made if some reasonable assumptions regarding the mean and standard deviation of the test…
Descriptors: Cutting Scores, Difficulty Level, Error of Measurement, Mastery Tests
