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Peer reviewedReynolds, Thomas J. – Educational and Psychological Measurement, 1981
Cliff's Index "c" derived from an item dominance matrix is utilized in a clustering approach, termed extracting Reliable Guttman Orders (ERGO), to isolate Guttman-type item hierarchies. A comparison of factor analysis to the ERGO is made on social distance data involving multiple ethnic groups. (Author/BW)
Descriptors: Cluster Analysis, Difficulty Level, Factor Analysis, Item Analysis
Peer reviewedMeir, Elchanan I.; Gati, Itamar – Educational and Psychological Measurement, 1981
In many personality and interest inventories, a score profile, rather than a single score, is attributed to each subject. Six applicable criteria are suggested for use in examining the adequacy of items in such inventories. These criteria relate to the items' response distributions, internal consistency, and discriminative value. (Author/BW)
Descriptors: Evaluation Criteria, Interest Inventories, Item Analysis, Personality Measures
Peer reviewedRogers, Paul W. – Educational and Psychological Measurement, 1978
Two procedures for the display of item analysis statistics are described. One procedure allows for investigation of difficulty; the second plots item difficulty against item discrimination. (Author/JKS)
Descriptors: Difficulty Level, Graphs, Guidelines, Item Analysis
