I dispute the claim that 'racial discrimination' explains African-American test scores; AA harms others. This is a great article otherwise.pic.twitter.com/3w575EMh3Y
"Selection bias hides everywhere in education." https://fredrikdeboer.com/2017/03/29/why-selection-bias-is-the-most-powerful-force-in-education/ …
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Yes. Although Finland takes all students, has nearly no private schools, and outperforms globally.
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The MS sample is also skewed by the fact that ACT is much more popular entrance exam than SAT. SAT only for those venturing outside region.
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That's a dramatic example! I was wondering how the stat could be true but the explanation makes perfect sense. Wow.
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Very useful link, with broad implications for public policy and even business.
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