Normalisation of Marks

Why is Normalisation in exams introduced?

Several government examinations are conducted at the Pan India level every year and it attracts a large number of candidates. As the number of applicants increases each year, it becomes difficult to take exams of all candidates in one go. This imposes a limitation on exam venues such that the exams are conducted in different shifts/sessions which in turn creates a variation in the difficulty level of the question papers of the various sessions.
Different sets of question papers and their different levels of difficulty become unfair for students and to eradicate this problem and maintain the righteousness of commission & conduct the fair competition, the Normalisation of marks is introduced.

What is Normalisation?

Normalization is a Statistical/Mathematical process to evaluate candidates’ performance on the basis of similar exam parameters, specifically on Difficulty level.
It is the process by which actual marks obtained by the students can be increased or decreased to a certain limit. If a student obtains 30 marks in shift one exam because of the difficulty level of the exam, they will get 60 marks. Similarly, if a student gets 90 marks because of an easy question it can be decreased up to a maximum mark.

The goal of normalization is to alter the difficulty level of the exam across multiple sessions.

25 days later
3 months later

Normalization process

SSC conducts various exams like SSC CGL, SSC CHSL, SSC MTS, and some more.
Students participating in these exams are lakhs in number, So SSC has to conduct exams in different shifts and on different dates. Every shift of the exam has different questions so it becomes almost impossible to balance the difficulty level for every shift. Now Normalization is the process that balances the difficulty level either by increasing or decreasing(as required) the raw marks obtained by a student in a particular shift.
If we simply Understand how normalization works, So it brings the average marks of every shift to almost equal.
Here is an example,
If we take an exam in 2 shifts, In shift 1 A, B, C, D, and E participated and In shift 2 P, Q, R, S, and T participated.
Marks In shift 1- A-60,B-70,C-65,D-55,E-50,
So average mark in shift 1 is 60.
Marks In Shift 2 - P-80,Q-90,R-85,S-75,T-80
So the average mark in shift 2 is 82.
Now we see that the average marks of shift 1 are lesser than that of shift 2. It means shift 1 was tough as
compared to shift 2( as SSC follows that each shift has equal talent pull). So the marks of shift 1 student
will be increased. That’s what Normalization is.
Now the question is that how many marks will be increased? So for that SSC uses a Standard formula.

Mij = Normalized marks of the jth candidate in the ith shift.
Mtg = is the average marks of the top 0.1% of the candidates considering all shifts (number of candidates will be rounded up).
Mqg = is the sum of mean and standard deviation marks of the candidates in the examination considering all shifts.
Mti = is the average marks of the top 0.1% of the candidates in the ith shift (number of candidates will be rounded up).
Miq = is the sum of mean marks and standard deviation of the ith shift.

    3 months later
    Merged 3 posts from SSC Normalosation.
    a month later

    What is the purpose of Normalisation in SSC Exams ?.

    Bahut baar dekha gaya hai ki SSC k exams me kisi student k marks kam ho jaate h aur kisi kisi k kaafi marks badh jaate hai. Asha kyu hota hai ?

      SatyamDahiya
      Aisa normalisation ke karan hota hai kyuki kisi shift ka hard ho sakta hai to kisi shift ka moderate ya easy bhi….

        Aisa tab kiya jata h jab ek hi exam ke liye exam kai paliyo me ya kai dino tak karwya jata h tab kisi pali ka paper hard hota aur kisi pali ka paper aasan hota h tab sabko equal karne k liye normalisation ka process follow kiya jata h aur is process me kisi k marks badh jate h to kisi k marks kam ho jate h.

        Normalization refers to adjusting values measured on different scales to a notionally common scale. It is basically done to evaluate the performance of all the candidates on the basis of similar exam parameters. It aims to adjust the difficulty level across different shifts of the exam.

        The Staff Selection Commission normalizes applicants’ marks for multi-shift examinations to accommodate for any differences in the difficulty levels of the question papers across different shifts,
        So basically, normalization is the process of converting values measured on various scales to a supposedly common scale. It is primarily used to assess the performance of all applicants using similar exam settings.

        Normalization is the process of reorganizing data in a database so that it meets two basic requirements: There is no redundancy of data, all data is stored in only one place. Data dependencies are logical,all related data items are stored together.

        3 months later
        Merged 6 posts from What is the purpose of Normalisation in SSC Exams ?.
        2 years later