(Business Insider) Vietnam is one of education’s biggest outliers:
It’s basically the only low-income country that performs at the same level as rich countries on international academic tests.
There’s a clear positive relationship between a country’s economic strength and how well its students perform on certain tests.
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But Vietnam, with a GDP per capita that is a fraction of the US’s, actually performs significantly better than you’d expect for a country at its level of income, and no one really knows why.
There are two internationally comparable tests that researchers have studied in an attempt to understand the mysterious “Vietnam effect.” One is the TIMMS test, on which Vietnam vastly outperforms other countries of similar GDP per capita.