advertisement
On 30 May 2017, The Quint reported that CBSE had unfairly and unequally spiked the marks of its Class XII students this year, following a decade-long tradition of tampering with students’ marks to appear high-scoring. The analysis was based on the results of a sample size of 24,980 students who appeared for the CBSE Class XII board exam this year.
But now, for the first time, the entire data dump of the CBSE 2017 results of more than 10 lakh students is at your fingertips. The information, mined by data scientist Debarghya Das, an engineer based in New York, exposes the extent to which CBSE tampered with the 2017 results.
The combined analysis of the results of all students who appeared for the CBSE Class XII exams this year also vindicates The Quint’s report on 30 May - Exclusive: Data Doesn’t Lie, CBSE Caught Cheating Yet Again.
The following graph shows the number of times each mark from 0 to 100 was awarded by the CBSE in this year’s Class XII board exams. For example, the full score of 100 was awarded a total of 8,230 times, all subjects combined.
At 1,97,580 times, 95 is far higher on the graph than the second-most awarded mark of 33 – the pass mark. The exact figure of 33 was awarded 1,26,679 times. While all other numbers appear in clusters, the 33-mark and 95-mark are clear spikes on the graph.
33 being the pass mark sees a spike because those who come close to the pass mark but miss out by a few marks are raised to 33. But what about 95?
The inordinate number of times the 95-mark was awarded to students helped expose the CBSE’s flawed method of moderating marks.
Also Read: Exclusive: How CBSE, ISC Cheated You by Moderating Marks Unfairly
Consider students A and B. Let us assume they have exams in two subjects which will determine their college admissions.
In subject 1, student A scores 95 and B gets 85. But B’s 85 is moderated to 95 while A’s mark stays at 95.
In subject 2, A scores 95 and B scores 96.
A now has 95 and 95. B now has 95 and 96. Thanks to ‘moderation’, A loses a college seat to B. Without moderation, A was 9 marks ahead of B.
The subject-wise breakdown of CBSE 2017 marks shows spikes at 95 across Physics, Chemistry, Biology and Mathematics.
Business Studies, Accountancy and Economics display clear 95 spikes as well.
In a television debate in June 2016, former exam controller for the CBSE, Pavnesh Kumar, had unwittingly admitted the flaw while attempting to defend it.
Kumar’s defence stressed on the need to stop moderation at some mark. Because if an 80 was increased by 15 to 95, a 90 couldn’t be increased similarly to 105. Strangely, Kumar refused to admit that increasing different students’ marks by different amounts was an unequal and unfair practice.
Yet, just days before the CBSE results were declared this year, Union HRD Minister Prakash Javadekar slammed the board’s unfair marking system, referring to CBSE’s policy of spiking up marks as “an illogical menace” that needed to be stopped.
On 24 April 2017, CBSE had announced that it would entirely stop the practice of moderation of marks this year onwards. And though the Delhi High Court ordered the CBSE to continue moderation of marks this year, the question that remains is whether the court really gave the board the licence to spike up marks in such an unequal manner.
Dheeraj Sanghi, professor at IIT-Kanpur, writes in a blog:
Sanghi makes a distinction between the ‘moderation’ of marks as per the CBSE’s official policies, and their unofficial practice of unequally bumping up marks.
Ironically enough, the same distinction was made by Union HRD Minister Prakash Javadekar in an interview to CNN-News18 a day after the setback in the Delhi High Court:
The CBSE’s own official by-laws do not mention scope for such arbitrary spiking as part of its moderation policy.
Debarghya Das, the data scientist behind this year’s exposé, cautions:
A shoddy implementation of the “no moderation” policy agreed upon by 32 different school boards on 24 April clearly fell through this year.
Just within the CBSE, lakhs of students received unequal increases in their marks, increases that vary from one student to another. This unfairly skews the college admissions process that is currently underway.
(At The Quint, we question everything. Play an active role in shaping our journalism by becoming a member today.)