The Randomness and Unreliability of Indian Exams (CBSE and ICSE)

<p>How the country's 2 main central boards take everyone for a ride. A closer inspection of the marks show that a few of the super-rich and well known schools have almost the entire class get 94/95 in English for the ISC.</p>

<p>Exposing</a> CBSE and ICSE: Statistical Insights into the True Lies on your Marksheets - the learning point</p>

<p>Data</a> Mining the last Decade of Deceit - CBSE Scoring curves for the last 10 years - the learning point</p>

<p>This is so stupid, its ridiculous. I go to a ‘well known school’ ( Vasant Valley in Delhi) and the ONLY reason people do well in english is because everyone has been speaking the language since they were 4 years old. So they already have a well developed linguistic sense. Also, at the best schools, the teachers will also be the best.Don’t you think that would play a part?And anyway, if a school does not have good board marks compared to its rivals, what does it have to show? My school is small, with 100 kids in class 12, but our AVERAGE is 90. What you’re saying is like saying people who graduate from better college earn more ( they do in the start of their career) and that is unfair ( using your logic) . Also the examiners for the urban kids tend to be urban, so they unequivocally have a better grasp of the language and correct better. I have heard stories of people who have marks cut because the EXAMINER does not understand the vocabulary used. It might sound unfair, but if you think about it this is not the boards fault.</p>

<p>Average being 90 for a school in a subject is fine. The whole country’s curve will look something like a bell curve. better schools and schools with children of wealthier or more education parents (predisposed to academic) success will definitely be way above average and their curve will be to the right of the country’s curve by a fairly significant margin.
However there will still be <em>some dispersion</em>. Maybe everyone is in a range of ± 5 marks in English. It can almost never be the case that an entire class of almost 100 ends up in large buckets of exactly the same score (a third of the class gets 94 another third gets 95 and so on). There’s something resembling an approximate bell shaped curve distribution which is expected at the countrywide level. We see nothing of the sort here.
these blogs are there on priceonomics today and many people from the stats background have confirmed these are very fishy.
Also, simple stats tells us that the shape of the curve cannot and should not change drastically on a year to year basis since the student population is approx. the same.</p>

<p>[A</a> Fishy-Looking Test Score Distribution](<a href=“http://priceonomics.com/a-fishy-looking-test-score-distribution/]A”>A Fishy-Looking Test Score Distribution - Priceonomics)</p>