Do China's top test scores represent the whole country's students?
Core argument: Over 85% of China's population, and an even larger share of its student population, live in regions for which Beijing does not disclose PISA achievement scores.
In 2019 the world’s leading authority on the testing and evaluation of educational performance all around the world, the Program on International Student Achievement (PISA), announced stunning results from its latest round of global examinations of 15 year olds: China was number one, all across the board. China may well be punching above its developmental weight in student achievement, like most of the rest of East Asia. Evidence at hand, however, does not yet make such a case. Over 85% of China’s national population—and even more of its student population—reside in regions for which Beijing does not disclose achievement scores. There is reason to think scores in these regions—and thus for China overall—could be far lower than those reported for “China B-S-J-Z” (the acronym for the amalgam of Mainland regions, Beijing, Shanghai, Jiangsu and Zhejiang, that participated in the most recent round of international PISA exams). Global relationships we estimate statistically offer a central estimate for China’s knowledge and skills that would place student achievement in that great country on par with places like Turkey and Mauritius—other developing societies the World Bank likewise classifies as “upper middle income” economies.


