@calestous @StatistaCharts Graphed against PISA scores for 15 year olds. Just a correlation but.....pic.twitter.com/etBTmpLxEz
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@calestous @StatistaCharts Graphed against PISA scores for 15 year olds. Just a correlation but.....pic.twitter.com/etBTmpLxEz
@calestous @StatistaCharts Can argue about homework hours for Japan and South Korea given "cram school" anecdotes but trend is still robust
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