A test of the hypothesis that cronbach's alpha or kuder-richardson coefficent twenty is the same for two tests |
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Authors: | Leonard S. Feldt |
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Affiliation: | (1) University of Iowa, USA |
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Abstract: | An approximate statistical test is derived for the hypothesis that the reliability coefficients (Cronbach's ) associated with two measurement procedures are equal. Control of Type I error is investigated by comparing empirical sampling distributions of the test statistic with the theoretical model derived for it. The effect of platykurtosis in the test-score distribution on the test statistic is also considered. |
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