1. The Robustness of LOGIST and BILOG IRT Estimation Programs to Violations of Local Independence;Ackerman,1987
2. A didactic explanation of item bias, item impact, and item validity from a multidimensional perspective;Ackerman;Journal of Educational Measurement,1992
3. An examination of the characteristics of unidimensional IRT parameter estimates derived from two-dimensional data;Ansley;Applied Psychological Measurement,1985
4. Multidimensional Item Response Theory Estimation: A Computer Program;Carlson,1987
5. A Theory of Data;Coombs,1954