The Common Admission Test (CAT) is a online based exam held in India. The entrance evaluate candidates on the structure of various sections like Quant (QA), Verbal Ability (VA) and Reading Comprehension (RC), Data Interpretation (DI) and Logical Reasoning (LR). The Indian Institutes of Management (IIMs) begin this exam and use the test for shortlisting students for their MBA/PGDM programs. The entrance is conducted every year by one of the IIMs based on a guidelines of alternation.

Before 2009, CAT was a pen paper based exam conducted on a single day for all candidates. The structure, number of questions and duration have seen various changes over the years.

The Common Admission Test (CAT), is similar to more ever other nationalized exams, utilises multiple forms, or versions, of the test. Hence it revolve around two types of scores: a raw score and a scaled score.

The raw score is computed for individual section based on the number of questions one answered correctly, incorrectly, or left unanswered. Candidates are given +3 points for each right answer and -1 point for each wrong answer. No points are alloted for questions that are not attempted. The raw scores are then fit through a task called equating. Equated raw scores are then positioned on a common standard or metric to ensure adequate interpretation of the scores. This process is called scaling.