Soon after the IIT JEE exam is over, the first thing a JEE examinee goes to look for is his probable AIR (All India Rank) through the IIT JEE rank predictor. Where to find these rank predictors? And how authentic/reliable are they? This is the subject matter of this blog article in a series of blog posts, aimed at helping aspirants of IIT JEE 2012 as well as all future JEE examinees to get some idea.
Well, let me tell you in the very beginning that these IIT JEE rank predictors/rank calculators are what they call themselves as – just a “PREDICTOR” – it can give you only a very approximate rank as no one can predict accurately how the candidates all over India have performed in the IIT JEE (based on which AIR is decided) till the result is declared. You should therefore take it with a pinch of salt.
JEE Rank Prediction method:
How does an IIT JEE rank predictor predicts a rank?
Well, it is based on the mark scored vis-à-vis rank secured by previous JEE examinees, corrected for the difficulty level of the current IIT JEE exam. For example, you can find in the table at right, a comparison of marks scored by every 500 rank holders in IIT JEE 2010 vis-a-vis 2009.
As you can see, these marks almost tallies – for example the difference of marks of 501st rank holder between JEE 2010 & 2009 is only 2 marks. Similarly for the 1001st rank holder, the difference is only 5 marks. Therefore, say for instance if you score 250 or more, you can predict yourself that you would be within AIR 2000.
With the above primer, let us find the list of IIT JEE rank predictors and how good or reliable are they.
List of IIT JEE rank predictor:
To test the IIT JEE rank predictors, I used the marks secured by topper of IIT-JEE 2010, Anumula Jithendar Reddy's marks whose scores were as below:
Chemistry:132, Maths:133, Physics:153, Total: 418.
IIT JEE Rank Predictor by resonance:
Using this rank predictor, I got the rank with Anumulas mark as between 101 – 200.
IIT JEE Rank Predictor by Career Point:
Using this rank predictor, I got the rank with Anumulas mark as between 2 – 5.
IIT JEE Rank Predictor by Allen:
Using this rank predictor, I got the rank with Anumulas mark as between 1 – 10.
IIT JEE Rank Predictor by Crack-Entrance:
Using this rank predictor, I got the rank with Anumulas mark as within top 500.
As you can see above there is a lot of variation in predicted rank for the same marks tested. While rank predicted by Career Point (between 2 to 5) and Allen (between 1 to 10) are almost same, the rank predicted by Resonance (101 – 200) & Crack-Entrance (within top 500) is much different.
Therefore as I said earlier, you should use these Rank Predictors with a pinch of salt, just for an approximation purpose or better as a game to play till your result is declared and you see the actual rank in IIT JEE results website. If you are interested to know how much mark you should score in IIT JEE to get a good seat inIITs, please visit my blog article titled: IIT JEE Cut-off Mark Category-wise Rank-wise.
Among these rank predictors, my preference is Career Point. Which IIT JEE rank predictor you have found the most accurate and hence reliable? I would really love if you post your comments below.