Examination for the Certificate of Proficiency in English (ECPE) data (the grammar section) has been used in Henson and Templin (2007), Templin and Hoffman (2013), Feng, Habing, and Huebner (2013), and Templin and Bradshaw (2014), among others.
A list of responses and Q-matrix with components:
responses of 2922 examinees to 28 items
The 28 \times 3 Q-matrix
The data consists of responses of 2922 examinees to 28 items involving 3 attributes. Attribute 1 is morphosyntactic rules, Attribute 2 is cohesive rules and Attribute 3 is lexical rules. In Templin and Hoffman (2013), three attributes are treated as independent.
However, Templin and Bradshaw (2014) have shown that a linear structure exists, that is, A1 -> A2 -> A3.
The data set is obtained from http://jonathantemplin.com/dcm-workshop-spring-2012-ncme/.
Feng, Y., Habing, B. T., & Huebner, A. (2013). Parameter estimation of the reduced RUM using the EM algorithm. Applied Psychological Measurement, 0146621613502704.
Henson, R. A., & Templin, J. (2007, April). Large-scale language assessment using cognitive diagnosis models. Paper presented at the annual meeting of the National Council for Measurement in Education in Chicago, Illinois.
Templin, J., & Bradshaw, L. (2014). Hierarchical diagnostic classification models: A family of models for estimating and testing attribute hierarchies. Psychometrika, 79, 317-339.
Templin, J., & Hoffman, L. (2013). Obtaining diagnostic classification model estimates using Mplus. Educational Measurement: Issues and Practice, 32, 37-50.
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