6Ackerman, T. (1996). Graphical representation of multidimensional item response theory analyses. Applied Psychological Measurement, 20(4), 311.
7Ackerman, T. A. (1994). Using Multidimensional Item Response Theory to Understand What Items and Tests Are Measuring. Applied Measurement in Education, 7(4), 255-278.
8Ackerman, T. A., Gierl, M. J., & Walker, C. M. (2003). Using multidimensional item response theory to evaluate educational and psychological Tests. MIRT Instructional Module/Educational Measurement: Issues and Practice, 37-53.
9Beguin, A. A., & Glas, C. A. W. (2001). MCMC estimation and some model-fit analysis of multidimensional IRT models. Psychometrika, 66(4), 541-561.
10Bolt, D. M., & Lall, V. F. (2003). Estimation of compensatory and noncompensatory multidimensional item response models using Markov chain Monte Carlo. Applied Psychological Measurement, 27(6), 395-414.
