Normalization Formula:
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Definition: Normalized score is a statistical method used by RRB (Railway Recruitment Board) to adjust scores across different sessions or shifts to account for variations in difficulty levels.
Purpose: It ensures fairness in evaluation when candidates appear for exams in different sessions with potentially different question paper difficulties.
The normalization formula used is:
Where:
Explanation: The formula scales the candidate's performance relative to the best and worst performances in their session.
Details: Normalization prevents advantage/disadvantage to candidates based on which session they appeared in, especially when multiple sessions have varying difficulty levels.
Tips: Enter your raw marks, the minimum marks in your session, and the maximum marks in your session. The calculator will compute your normalized percentage.
Q1: Why does RRB use normalization?
A: To ensure fairness when exams are conducted in multiple sessions with potentially different difficulty levels.
Q2: Where can I find session-wise min/max marks?
A: RRB usually publishes these statistics along with results or answer keys.
Q3: Can normalized score be higher than 100?
A: No, the formula scales scores between 0-100 based on session performance.
Q4: Does normalization favor high-scorers or low-scorers?
A: It maintains relative performance - if you scored well compared to others in your session, your normalized score will reflect that.
Q5: Is normalization used for all RRB exams?
A: Most multi-session exams use normalization, but check official notifications for specific exams.