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| Studies in Educational… | 1 |
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| Gower, D. M. | 1 |
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Peer reviewedGower, D. M.; Daniels, D. J. – Studies in Educational Evaluation, 1980
The facility index of a test item is the percentage of testees choosing the correct response. A common curriculum model presents process and content as two dimensions of the difficulty of an educational task. Wheeler suggested a third dimension: precision. This three-dimensional model is applied to chemistry education. (BW)
Descriptors: Chemistry, Curriculum Design, Difficulty Level, Foreign Countries
