Confirmatory multidimensional item response theory (CMIRT) was used to assess the structure of the Graduate Record Examination General Test, about which much information about factorial structure exists, using a sample of 1,001 psychology majors taking the test in 1984 or 1985. Results supported previous findings that, for this population, there exists a weak analytical factor defined by the logical reasoning items and not by the analytical reasoning items. This finding was more straightforward than the same finding based on the full-information factor analysis (FIFA) approach used in the previous study; however, an advantage of FIFA was that it allowed the researcher to assess the proportion of variance explained by each factor in the orthogonal solution--the CMIRT approach is unlikely to yield such a statistic. Examination of the results shows the CMIRT approach to hold much promise. (SLD)