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knowledge_assessment:q-matrix [2012/07/04 16:32] jpetrovic |
knowledge_assessment:q-matrix [2012/07/04 16:34] jpetrovic |
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* originally a binary matrix showing the relationship between test items and latent or underlying attributes, or concepts | * originally a binary matrix showing the relationship between test items and latent or underlying attributes, or concepts | ||
* To build the q-matrix, experts constructed a relationship between test questions and concepts (referred to as attributes) and students taking the test were assigned knowledge states based on their test answers and the constructed q-matrix ((see Ham85 for a discussion of item-response theory)) | * To build the q-matrix, experts constructed a relationship between test questions and concepts (referred to as attributes) and students taking the test were assigned knowledge states based on their test answers and the constructed q-matrix ((see Ham85 for a discussion of item-response theory)) | ||
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