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:

Percentile Score =Number of candidates appeared in the ‘Shift’ with  raw score EQUAL TO OR LESS than the candidate/The total number of the candidates who appeared in the ’Shift’ X 1000

The percentile scores for the raw score of all the candidates for all the shifts will be merged and calledthe RRC scores which will then be used for the compilation of results and further processing for deciding the merit allocation. The Percentile Scores will be calculated up to 5 decimal places to avoid the bunching effect and reduce ties.

In case of two or more candidates secure same Normalized Percentile Score, their merit position will be determined by age criteria i.e., older person will be placed at higher merit and in case age being same, then alphabetical order (A to Z) of the name shall be taken into account to break the tie.

What is Normalized Marks Calculator for RRB Exams?

Normalization process followed by RRBs is a scientific and statistical process. It depends on the statistical parameters calculated based on the performance of candidates in the particular session as well as of other sessions. Normalization of marks is done when the exam is conducted in multiple sessions for the same syllabus and has chances of variation in the difficulty level of questions. As a result, the score obtained by the candidates may vary. To equalize the variation in the difficulty level of question papers the scores are normalized. Shortlisting of candidates for various stages of the exam is done based on the normalized marks.

Related Railway Exam Links:

RRB NTPC

RRB Group D

RRB ALP

RRB JE

How is Normalised Score Calculated?

The normalisation process followed by RRBs is a scientific process. It is not the process of adding grace marks. Normalisation is calculated based on the performance of candidates in a particular session as well as other sessions. The process involves the calculation of the raw score of the candidate. The mean and standard deviation of raw marks of candidates in a paricular session and other sessions are normalised.

Also Read: RRB NTPC Marks Calculator

Normalized Marks Calculator for RRB: Points to be Noted

Some of the important points related to RRB marks calculator are given below:

• Normalisation is not providing grace marks. It is basically scientific and statistical process of equalising the marks of candidates
• Normalisation is done on the basis of performance of the candidate in the RRB exam in all sessions
• RRB normalisation procedure is totally based on raw score of candidates. Raw score are the ones obtained by the aspirants by answering correctly in each section of the Exam. These are the scores calculated after applying the penalty for wrong answers
• The statistical parameters in normalisation of a session are the mean marks and standard deviation of marks scored by the aspirants in the session of RRB exam. These are analysed and totally based on the calculated values of all these parameters a session is taken as the base session
• The base session is taken to equalise the level of difficulty of each session

What is Normalisation Formula?

The revised normalization formula is given below. The calculation of marks will be five decimals.

 

RRB Normalisation Formula

 The Raw Score is computed as given below:

Total Questions-100

No of Questions Ignored (question wrong, multiple options correct, etc): 2

No of Questions attempted: 60; Correctly Answered: 54

Wrongly Answered: 6

Positive Marks: 54

Negative Marks: 2

Net Score: 54-2=52

Score Out of 100: (52/98)*100= 53.06

Raw Score= 53.06

RRB NTPC Marks Calculator

RRB NTPC exam is conducted in different sessions therefore there are some variations in the difficulty level of each shift. In order to equalise the variation in the difficulty level of question papers RRB NTPC marks calculator is used to calculate the score of candidates. This done to ensure that the difficulty level is same across every shift. RRB NTPC marks calculator is given below:

• For the correct answer, candidates score one mark
• For incorrect answer, 1/3 marks are deducted 
• Add all the marks for correct answers 
• Add all the marks for incorrect answers
• In the end, deduct total marks for correct answers with the incorrect answers. This will give the score