SSC Announces New Normalization Formula for Exams Conducted from June 2025

The Staff Selection Commission (SSC) has introduced a new normalisation formula that will be applicable to all exams notified from June 2025 onwards.

SSC Announces New Normalization Formula

SSC Normalisation Formula: To ensure fairness in the evaluation process, the Staff Selection Commission (SSC) has announced a new normalisation procedure for exams conducted in multiple shifts. This revised SSC normalisation methodology will be implemented for all examinations notified from June 2025 onwards.

The normalisation process is important in multi-shift exams where question paper difficulty may vary slightly across sessions. The SSC’s updated approach ensures that candidates are evaluated on a common scale, eliminating any disparity due to sessional variations in difficulty.

Procedure for SSC Score Normalisation

The normalisation will be carried out separately for each test, subject, or area and involves the following three key steps:

Step 1: Converting Raw Scores into Percentile Scores

• For each shift, the raw scores of all candidates are converted into percentile scores.
• These percentiles are calculated independently for each shift, capturing a candidate’s relative performance in their specific session.

Step 2: Mapping Percentiles to Marks Scale

• All percentile data from various shifts are merged into a single dataset.
• The combined data is then sorted in descending (or ascending) order of percentiles.
• Interpolation is used to fill gaps in the raw score table, allowing the percentile values to be mapped back onto the marks scale consistently.

Step 3: Generating SSC Normalised Scores

• After Step 2, each percentile corresponds to a specific raw score for each session.
• This mapping is then used to derive the normalized score for each candidate across all shifts.
• The final output is a standardized, comparable score for every candidate, regardless of the shift in which they appeared.

Calculation of Normalised Score Formula Image

Candidates can check the image below:

Normalization Formula for SSC Exams

This entire procedure is independently applied to every subject, test, or area that a candidate opts for. As a result, each candidate will receive a normalised score for each section attempted, ensuring consistency and comparability across the board. The SSC’s new normalization framework marks a progressive shift toward transparency and uniformity in competitive examinations.

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