<p>I’m not sure how applicable Gaokao rankings would be to (overall) China PISA scores. You have to take into account the significant amount of corruption tied to the Gaokao testing. Whatever questions we may have with the validity of PISA testing in China, it pales in comparison to the Gaokao. </p>
<p>[Riot</a> after Chinese teachers try to stop pupils cheating - Telegraph](<a href=“Riot after Chinese teachers try to stop pupils cheating”>Riot after Chinese teachers try to stop pupils cheating)</p>
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<p>That, and it’s hard enough trying to figure out the underlining details of the PISA test, trying to do the same with the Gaokao would take a major effort (if it’s at all possible).</p>
<p>You would also have to take into account the population in each province. For example, Zhejiang has 54 million people, while Niagxia has 6 million. And…and…lol…way too much work :)</p>