AckermanT. A. (1996). Graphical representation of multidimensional item response theory analyses. Applied Psychological Measurement, 20, 311-330.
2.
BryantD. U. (2005). A note on item information in any direction for the multidimensional three-parameter logistic model. Psychometrika, 70, 213-216.
3.
HambletonR. K.SwaminathanH.RogersH. J. (1991). Fundamentals of item response theory. Newbury Park, CA: Sage.
4.
ReckaseM. D. (1985). The difficulty of test items that measure more than one ability. Applied Psychological Measurement, 9, 401-412.
5.
ReckaseM. D. (1997). A linear logistic multidimensional model for dichotomous item response data. In van der LindenW. J.HambletonR. K. (Eds.), Handbook of modern item response theory (pp. 271-286). New York, NY: Springer.
