knowledge_assessment:q-matrix
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knowledge_assessment:q-matrix [2012/07/05 13:34] jpetrovic |
knowledge_assessment:q-matrix [2012/07/05 13:56] jpetrovic |
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| When forming a correlation matrix, we lose individual student data in favor of calculating average relationships between questions. The q-matrix method is optimized to assign each student the most appropriate knowledge state, using all available response data for each student. | When forming a correlation matrix, we lose individual student data in favor of calculating average relationships between questions. The q-matrix method is optimized to assign each student the most appropriate knowledge state, using all available response data for each student. | ||
| + | As Sellers found in her research, the results obtained through | ||
| + | q-matrix analysis seem to describe relationships among variables in interpretable ways. | ||
| + | Factor analysis and principal components analysis, on the other hand, do not readily offer | ||
| + | interpretable results. | ||
knowledge_assessment/q-matrix.txt ยท Last modified: 2023/06/19 18:03 (external edit)
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