Questions in the NMAT by GMAC™ exam are selected from the question pool for each examinee based on his or her performance on the questions previously answered. The questions a candidate receives are targeted at his or her ability level; therefore, a high-scoring candidate generally receives a more difficult sample of questions than a low-scoring candidate. The NMAT exam is scored by obtaining the candidate’s final ability estimate based on the probabilistic model approach of modern test theory and transformed to a scaled score ranging from 12 to 360.