You are a Delhi student who did 12th class exam in PCM and English. Received 92% and are happy with it. Sorry to deflate your happiness, but you actually received 82% and CBSE arbitrarily increased your marks to 92% just so that you can compete in Delhi University admissions with boards like TN, AP, etc., where the marks distribution do not follow anything close to normal distribution that you would expect in any large exam.
Here is the link to the Economic Times report.
It follows a story by News18 in early June where they had pointed out several anomalies in the marks distribution in CBSE.
For the last 10 years, every year, it was being pointed out that a very large fraction of CBSE students were getting 95% marks in most of the subjects. CBSE kept saying that it was only doing some minor normalization. But finally, it is out in the open. The minutes of the results committee clearly say that everyone who received marks between 80 and 95 in Maths this year was actually awarded 95 marks. And similar increases were done in a large number of papers and that is why 95 was a magical number in CBSE results. What is interesting is that despite this being pointed out every year by people who were able to download CBSE results and analyse them, it has taken us 10 years to finally get evidence from CBSE that this is indeed happening.
Consider the consequences of this. A student works very hard and gets 95 marks in mathematics. Another student is not so bright and receives 80 marks in Mathematics. Both of them are being awarded 95 marks. In all other subjects, both perform similarly, but the not so bright student gets one mark extra in English. Now in all admissions, the not so bright student is ahead of our bright student, despite getting a total of 14 marks less. This is when the admissions and careers are decided by one mark here and there. And remember, this is arguably the best managed board in the country.
I can understand that CBSE students have to compete with boards who have no qualms about giving very liberal marks to all their students. I can understand that increasing raw marks is one way to do that, and it is suspected that all boards are doing that. But shouldn't there be a better method to increase raw marks which maintains the relative positions of the students to some extent. Any such "moderation" would distort marks, but could we not ensure that people lost advantage of only a few marks in the process and not such a huge number of marks.
And this is what shocks me. That the Results Committee of as prestigious a board as CBSE does not have anyone who understands basic statistics, even school level statistics. And such a bunch is deciding the future of our kids.
So, it is not just Bihar board that is to be blamed. Most of the boards in the country are doing things which are academically stupid. Look at Telangana board. 20% of the students have received 95% marks or higher in class 12th this year. And of course, AP board will have to learn to compete with Telangana. They used to be the most liberal in earlier days. In 2016, they are the second most liberal graders with 80th percentile being 94% marks.
The school education in the country has collapsed. Out of 3 crore babies born in a year, no more than 3 lakh students would have received quality education and would be well prepared to take the challenges of a globalized world. May be a few lakhs more will learn on their own and manage decent careers. By doing what our boards are doing, we are not just risking the future of our kids, but risking the future of our nation, as the two are one and the same.
The blog that talks about CBSE marks inflation over the last decade and more is linked below.