MBBS 2015 Entrance Examination Pattern AIIMS aiimsexams.org : All India Institute of Medical Sciences

Organisation : All India Institute of Medical Sciences AIIMS
Announcement : Pattern
Entrance Exam : MBBS 2015 Entrance Examination
Reference Number : ADMISSION NOTICE NO. 4/2015

Notification : https://www.entrance.net.in/uploads/718-ProspectusMBBS2015.pdf
Home Page : http://www.aiimsexams.org/

AIIMS ENTRANCE EXAMINATION FOR MBBS COURSE – 2015 :
COMPETETIVE ENTRANCE EXAMINATION :
As per the initiative taken by Director, AIIMS, New Delhi, it has been decided to conduct the competitive Entrance Examination of MBBS-2015 through a Computer Based Test (CBT) [Online] only in 2015.
** The examination shall be held on Monday, 01 June 2015.
** The duration of the examination shall be 3½ hours (three hours and thirty minutes).
** The Online (CBT) Entrance Examination will be conducted in two shifts:
Morning Shift / First shift : 09:00 AM to 12:30 PM
Afternoon Shift / Second shift : 03:00 PM to 06:30 PM
** The examination centres are tentatively proposed in 154 cities all over India.

Therefore all candidates will be required to appear at CBT Online Entrance Examination, which will be conducted by the AIIMS, New Delhi on Monday, the 1stJune, 2015 in either of two shifts (9:00 AM to 12:30 PM & 3:00 PM to 6:30 PM) as allotted. The venue, time and shift of the examination will be communicated to the candidates in the Admit Card. No candidate will be permitted to appear in the examination unless he/she holds a valid “Admit Card” issued by the Institute and a proof of their identification.

TYPE OF PAPER :
The Competitive Entrance Examination will have one paper consisting of 200 Objective Type (Multiple Choice and Reason-Assertion type) questions from Physics, Chemistry, Biology and General Knowledge. The distribution of questions is :
Subject Number of Questions
Physics 60
Chemistry 60
Biology (Botany & Zoology) 60
General Knowledge 20

LANGUAGE OF QUESTION PAPER :
Automated Question paper will be provided either in English or in Hindi according to the choice of candidates. Applicants must choose / indicate in the application form whether he/she prefers to have the question paper in English or Hindi. This choice cannot be changed later at any stage.

SCHEME OF MARKING :
** Each correct response will get a score of 1 mark.
** Each incorrect response will get a score of – ? (minus-one-third).
** No credit will be given for the questions not answered or marked for review (Please see Annexure-5 on Online Examination)
** The score such obtained will be the Raw Score that will be used to determine Percentage score and percentile [for the purpose of Eligibility using Cut-Offs] and Normalization [for the purpose of determining Merit / Ranking].

MINIMUM CUT-OFF SCORES :
In accordance with decision of the Governing Body, AIIMS, New Delhi dated 26.11.2009 and the past practice adopted by AIIMS, New Delhi, the minimum cut-off necessary in the Entrance Examination to determine eligibility for admission is:
General Category : 50%
OBC (Non Creamy Layer) : 45%
SC / ST : 40%
OPH : Cut-offs of the respective category

Since the examination will be held in two shifts and a Normalization Procedure will be used (see 8.8); the Percentile score corresponding to the above cut-offs will be used to determine eligibility. In the event of the percentiles for the two shifts being dissimilar / unequal, the lower of the two will be the eligibility cut-off for that category for all candidates (i.e. both shifts). For example if the 50% marks correspond to a Percentile score of 90 in Shift 1 and to a Percentile score of 88 in shift 2 then all those equal to or above 88 Percentile (Percentile score of 100 to 88)in both shifts will become eligible in General Category. Similar method will be adopted for the other categories to determine eligibility cut-offs.

NORMALIZATION PROCEDURE :
This year, since there would be two shifts, a Normalization Procedure is being adopted as decided by experts based on analysis of past MBBS Entrance Examinations conducted by AIIMS, New Delhi. This will be utilized to decide on the inter-se merit / ranking [used during Counseling for allotment of seats] between those who appeared for the examination. The normalization procedure that will be adopted is based on PERCENTILES.

Percentile Scores Percentile scores are scores based on the relative performance of all those who appear for the examination. Basically the marks obtained are transformed into a scale ranging from 100 to 0 for each group (shift) of examinees.

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 in between the highest and lowest scores are also converted to appropriate Percentiles.

The Percentile score is the Normalized Score for this examination. The Percentile Scores will be calculated 7 decimal places to avoid bunching effect and therefore reduce ties.

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 scores equal to or lesser than the the highest scorer/ topper for that shift. For example, in Shift 1 if the highest score is 80% and in Shift 2 the highest score is 82%, both scores would be normalized to 100 Percentile for their respective group / shift.

The lowest score would have a percentile depending on the total number of candidates who have taken the examination. Supposing 100000 students have taken the examination in Shift and let the highest score (A) for that group / shift be 160 / 200 (80%) and the lowest score (B) – 3/ 200 (-1.5%). If there is no other candidate who has scores equal to either A or B, then the Percentile Score of A, the top scorer, shall be 100 [because all or 100% of candidates have scored EQUAL TO OR LESS THAN A].The Percentile Score of B, the lowest scorer, shall be 0.001 since the percentage of candidates with scores EQUAL TO OR BELOW would be 0.001 [(1/100000)*100]. If another candidate (C) had a raw score similar to that of A, then both A and C would have a Percentile Score of 100. Similarly if another candidate (D) had a raw score equal to that of B then both B and D would have a Percentile score of 0.002 [(2/100000)*100]. Ties would therefore have similar Percentiles.

The following is a further explanation of the interpretation of the scores in an examination with 100 candidates.
** If candidate A’s Percentile score is 100, it indicates that amongst those who have taken the examination, 100% have scored either EQUAL TO OR LESS THAN the candidate A. It also indicates that no candidate has scored more that candidate A.
** 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 indicates that remaining candidates have scored more than candidate B.
** 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 indicates that remaining half of those who took the examination have scored more than candidate C.
** If 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 indicates that remaining have scored more than candidate D.
** If candidate E’s Percentile score is 1, it indicates that none of the candidates who have taken the examination have scored either EQUAL TO OR LESS than candidate E. It also indicates that all remaining candidates who took the examination have scored more than candidate .