AIIMS Delhi Issues notice on Normalization Procedure For Preparation Of Result Of Examination
Delhi: All India Institute of Medical Sciences (AIIMS Delhi) has issued details related to the normalization procedure for the preparation of the results of the examination.
Process of Normalization –
Percentile Scores –
1. Percentile scores are 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 group (shift) of examinees.
2. 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 group (shift) will get the same Percentile of 100, which is desirable. The marks obtained between the highest and lowest scores are converted to appropriate Percentiles.
3. The Percentile score is the Normalized Score for the examination.
4. The Percentile Scores will be calculated to 7 decimal places to avoid the bunching effect and reduce ties.
5. In this method of scoring, the highest score in each paper (irrespective of the raw scores/percentage obtained) will be the 100 Percentile indicating that 100% of candidates have scored equal to or lesser than the highest scorer/ topper for that shift.
6. The lowest score would have a percentile depending on the total number of candidates who have taken the examination.
The following further explains the interpretation of the scores in an examination (such as one shift) with 100 candidates –
1. If candidate A's Percentile score is 100, then all who have taken the examination, 100%, have scored either equal to or less than candidate A. It also indicates that no candidate has achieved more than candidate A.
2. If candidate B's Percentile score is 90, it indicates that 90% of the candidates who have taken the examination have scored either equal to or less than candidate B. It also demonstrates that the remaining candidates have achieved more than candidate B.
3. If candidate C's Percentile score is 50, it indicates that 50% of the other candidates who have taken the examination have scored either equal to or less than candidate C. It also shows that the remaining half of those who took the test scored more than candidate C.
4. Suppose candidate D's Percentile score is 30. It indicates that 30% of the candidates who have taken the examination have scored either equal to or less than candidate D. It also shows that the remaining have achieved more than candidate D.
5. If candidate E's Percentile score is 1, it indicates that none of the candidates who have taken the examination scored equal to or less than candidate E. It also shows that all remaining candidates who took the test scored more than this candidate.
Applicability –
1. It may be applicable for entrance, recruitment or any examination as per requirement for preparation of merit results at the discretion of the Dean (Examinations).
2. It may be applicable in any examination conducted in multiple shifts at the discretion of the Dean (Examinations).
Process –
1. Examinations consisting of Multiple Subjects in the examination scheme & conducted in multiple shifts.
The step-by-step procedure for normalization and preparation of merit/ranking –
Distribution of Examinees in multiple shifts -
1. Applicants would be randomly allotted into different groups (shifts) such that these groups are approximately equal in number. This will ensure no bias in the distribution of candidates who take the examination.
2. With a large population of examinees spread over the entire country, the possibility of bias becomes remote.
Preparation of Results for each Shift –
1. The examination results for each shift will be prepared in the form of – Raw Scores, Percentages
2. Percentiles (up to 7 decimal places) separately for each subject and the total.
3. The Percentile of the total shall not be an aggregate or average of the Percentile of individual subjects.
Resolution of ties –
Suppose the examination consists of ‘N’ subjects, Subject 1, Subject 2, ….., Subject N, and the Priority of subjects for resolving ties is Si > Si+1 for all i from 1 to N-1, the method adopted for breaking ties (similar Percentiles) shall be –
1. Subject 1: Higher Percentile scores in Subject 1 will result in a higher ranking
2. Subject 2: If Subject 1 Percentiles do not break the tie, higher Percentile scores in Subject 2 will result in a higher ranking
3. Subject N: If Subject 1, Subject 2, …. and Subject N-1 Percentiles do not break the tie, higher Percentile scores in Subject N will result in a higher ranking
4. Age: If none of the Subjects’ Percentiles breaks the tie, the candidate elder by age will be ranked higher
Resolution of ties Cases -
1. Resolution of ties will be per the examination scheme published in the prospectus/advertisement.
Preparation of Overall Rank / Merit List –
1. As mentioned above, the Percentile scores for the total marks for all the shifts would be merged and arranged to derive an overall Merit List / Ranking.
2. The percentile score is not the same as the percentage of marks obtained.
A detailed exam of f a hypothetical scenario in the preparation of Overall Ranking / Merit is enclosed in the notice below.
Examination consisting of a Single Subject/Score in the examination scheme & conducted in Multiple Shifts –
1. The overall merit/ranking shall be based on the Percentile score of the raw score.
2. The method adopted for breaking ties (similar Percentiles) shall be based on age, i.e., the candidate older by age will be ranked higher.
To view the notice, click on the link below –
https://medicaldialogues.in/pdf_upload/noticenormalization-procedure-201373.pdf
