The results of this study conclude that there is a multidimensional basis for test score inferences on the mathematics and critical reading sections of the SAT. Results from the exploratory analyses indicate that the data are multidimensional, as mathematics displayed two dimensions and critical reading displayed three dimensions. The correlations between the dimensions were moderate in both test sections. Appended are: (1) Appendix A (a short description of each primary mathematics skill); and (2) Appendix B (a short description of each critical reading skill).