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Hendrickson, Gerry F.; Green, Bert F., Jr. – 1972
It has been shown that Guttman weighting of test options results in marked increases in the internal consistency of a test. However, the effect of this type of weighting on the structure of the test is not known. Hence, the purpose of this study is to compare the factor structure of Guttman-weighted and rights-only-weighted tests and to relate the…
Descriptors: Analysis of Variance, Correlation, Factor Analysis, Item Analysis
Kingston, Neal M. – 1985
Birnbaum's three-parameter logistic item response model was used to study guessing behavior of low ability examinees on the Graduate Record Examinations (GRE) General Test, Verbal Measure. GRE scoring procedures had recently changed, from a scoring formula which corrected for guessing, to number-right scoring. The three-parameter theory was used…
Descriptors: Academic Aptitude, Analysis of Variance, College Entrance Examinations, Difficulty Level