Normalization of Marks in Multi-Session Examinations

When a test is conducted in several sessions using distinct question papers, normalization of scores is required to have a fair assessment of the candidates. Several selection tests nowadays are conducted in multiple sessions (using multiple choice questions). In this article we discuss various normalization schemes used in India when an examination involving multiple choice questions is conducted across various sessions. We illustrate through simulation, that the percentile-based normalization scheme outperforms all the other schemes.