Since ATMA is conducted in multiple sessions (Feb, May, July), the difficulty level may vary. To ensure fairness, AIMS uses a normalization process where raw scores are converted into 'Scaled Scores' on a range of 0 to 800. This statistical method adjusts for the relative difficulty of each session's paper. Your final percentile is calculated based on these scaled scores, reflecting your standing relative to all other test-takers in that specific session.