Not sure where to begin your search for a good graduate school fit? Peterson's Guide to Graduate Programs offers concise information for US graduate programs aligned by study area.
Admission requirements for many programs require that you take the Graduate Record Exam (GRE), which is the standard graduate level exam for many disciplines. It's offered in Colorado Springs at several testing locations.
The GRE General Test features question types that closely reflect the kind of thinking you'll do in graduate or business school.