DISCRIMINATION AMONG INDIVIDUALS V. DISCRIMINATION AMONG GROUPS |
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| Authors: | ARIEH LEWY |
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| Institution: | Jerusalem, Ministry of Education Curriculum Center |
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| Abstract: | Achievement tests are used for discrimination both among individuals and among classes. Item selection procedures which are recommended for constructing tests for individual differentiation may not be adequate for tests for discrimination among classes. It is suggested that the item intraclass correlation should be used as an index for item selection in tests designed for the measurement of class performance. An example is presented which shows that using the intraclass correlation for item selection yields different results than using item-test correlation coefficients. |
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