9DiBello, L. V., Stout, W. (2007). Introduction and Overview: IRT -Based Cognitive Diagnostic Models and Related Methods. Journal of Educational Measurement, 44(4) : 285 - 291.
10Tatsuoka, K. K. (1983). Rule space: an approach for dealing with misconceptions based on item response theory. Journal of Education Measurement, 20(4): 345-354.