Mining Diagnostic Assessment Data for Concept Similarity



Published Oct 1, 2009
Tara Madhyastha Earl Hunt


This paper introduces a method for mining multiple-choice assessment data for similarity of the concepts represented by the multiple choice responses. The resulting similarity matrix can be used to visualize the distance between concepts in a lower-dimensional space. This gives an instructor a visualization of the relative difficulty of concepts among the students in the class. It may also be used to cluster concepts, to understand unknown responses in the context of previously identified concepts.

How to Cite

Madhyastha, T., & Hunt, E. (2009). Mining Diagnostic Assessment Data for Concept Similarity. JEDM | Journal of Educational Data Mining, 1(1), 72-91. Retrieved from
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