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Testing the Difference between Two Alpha Coefficients with Small Samples of Subjects and Raters
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Feldt, Leonard S.; Kim, Seonghoon – Educational and Psychological Measurement, 2006
Researchers sometimes need a statistical test of the hypothesis that two values of Cronbach's alpha reliability coefficient are equal. The situation may involve scores from two different measures administered to independent random samples or from the same measure administered to random samples from two different populations. Feldt derived a test…
Descriptors: Individual Testing, Test Items, Sample Size, Scores
Test Review: The Revised PPVT.
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Kipps, Debi; Hanson, Dave – School Psychology Review, 1983
The Peabody Picture Vocabulary Test-Revised (Dunn and Dunn) is described as a convenient, quick test, possessing improvements over the original. It measures a subject's receptive (hearing) vocabulary for Standard American English. However, the validity information for the test is less than adequate, since no validity studies are presented for it.…
Descriptors: Auditory Tests, Individual Testing, Scores, Test Length
The Predictive Validity of the Developmental Test of Visual-Motor Integration under Group and Individual Modes of Administration Relative to Academic Performance Measures of Second-Grade Pupils without Identifiable Major Learning Disabilities.
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Curtis, Connie June; And Others – Educational and Psychological Measurement, 1979
The score distributions of the two methods of administration described in the title revealed comparable means, standard deviations, and general shape of distribution. With respect to validity coefficients, no appreciable differences were found. (JKS)
Descriptors: Comparative Testing, Educational Testing, Eye Hand Coordination, Grade 2