The Real Indian IQ

[G.Subramaniam]

Errors in PISA 2009 Indian scores - part 1

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For reference I am comparing this against the World Bank report 'Indian Shining, Bharat Drowning'



Making an accurate sample is very difficult in Indian populations, due to effects of caste and poverty



However, I am assuming that the World bank report sampling has not been gerrymandered



In Math, the TIMMS score is as follows



Orissa Avg = 404

Rajasthan Avg = 382



For reference,



Iran Avg = 411

Philippines Avg = 378

Norway = 461



Per Avg scores, these states show up as lower-middle income countries



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If we move from Avg scores to High International Benchmark Scores of 550



In Iran, 3% cross this level

In Philippines 3% cross this level



In Orissa, 9% cross this level

In Rajasthan, 4% cross this level



In Norway, 10% cross this level



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So at the Avg Level, these states look like Iran and Philippines, at the High end, they look like Norway



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The Average Indian scores like Iran, and the Top Indians score like Norway, there is a very distinct High End IQ bulge that is absent in countries with the same Average score



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At the bottom end,



Orissa 5th percentile = 240

Rajasthan 5th percentile = 220,



At the bottom end, these states look like black Africans



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Lets now look at the PISA Math scores for TN and HP



TN - 5th percentile = 241

HP - 5th percentile = 223



TN - 50th percentile = 351

HP - 50th percentile = 338



TN - 95th percentile = 468

HP - 95th percentile = 458



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If we compare the TIMMS for Orissa and Rajasthan vs PISA for HP and TN, we notice that the bottom end is identical

The mean has shifted down by 50 points and the top end has shifted down by 100 points.



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Next we will investigate why the mean and top-end have down-shifted



One explanation is that per the WIPRO report, TN has the worst, most dumbed down state curriculum and TN scores below the Indian Average, while Orissa despite being much poorer scores near the top for all Indian states, in Govt schools