Normalisation Process in RRB exams: Calculation Formula for RRB NTPC, Group D

Railway Recruitment Boards (RRBs) follow normalisation method for calculating the marks of candidates. The normalisation of marks is done to adjust the difficulty level across various sessions of the exam. Let us look in detail below at how the normalisation of marks is done for various railway exams such as RRB Group D, RRB ALP, RRB NTPC and RRB JE.

Process of Normalisation of Marks in RRB exams

RRB Normalisation Formula: Railway Recruitment Boards (RRBs) have announced that it will follow percentile-based normalisation of marks in RRB Group D exam. This percentile-based normalisation (simple and easy to understand) will be used in exams wherever the number of shifts involved are more than one. The board has also decided that RRC wise CBT will be held for RRB Group D. Also, maximum available capacity is recommended to be used inorder to significantly reduce the number of shifts involved for each RRC and to speed up the examination process. Every year Railway Recruitment Boards (RRBs) release a huge number of vacancies for various posts such as NTPC, Level 1 Group D, JE, Paramedical & Ministerial Railway Exams. To which, the RRBs receive a large number of applications. As a result, the examination has to be split into multiple sessions and days keeping in mind the limitations of the capacity of examination centres. To ensure fairness and transparency in the examination process, RRBs applies normalization of marks for calculating the scores of candidates since the exam is held in multiple shifts and days having different difficulty level of the questions. Even RRBs has also revised the normalisation process. To know more about normalized marks calculator for RRB exams, read this article below.

Why is Normalization Marks Procedure Applied for RRB Exams?

In RRB ALP, Group D, JE, NTPC, normalisation of marks is done to ensure that aspirants do not be deprived by the difficulty level of exams. RRB conducts examinations on multiple dates and shifts, it is impossible to have question papers of the same difficulty level across shifts. Therefore, normalisation is done to equalise the difficulty level across different sessions. Due to the variation in difficulty level, some candidates end up attempting the tougher sets and some easier ones. The aspirants who sit in the comparatively tough examination get lower marks as compared to those who attempt the easier one. Here, normalisation plays an important role.

What is Percentile Score Based Normalisation in RRB Group D?

Percentile score-based normalisation will be used in RRB Group D exam. Percentile scores are scores based on the relative performance of all those who appear for the examination. The marks obtained are transformed into a scale ranging from 100 to 0 for each shift of examinees.

The percentile score is not the same as the percentage of marks obtained. The percentile score indicates the percentage of candidates that have scored equal to or below (same or lower raw scores) that particular percentile in that examination. Therefore, the topper (highest score) of each shift will get the same percentile of 100 which is desirable. The marks obtained in between the highest and lowest scores are also converted to appropriate percentiles.

The percentile score will be the normalized score for the examination (instead of the raw marks of the candidate) and will be used for the preparation of the merit lists. The Percentile score of a Candidate for a particular shift will be calculated as below: