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A comment on Selection bias is the most powerful force in education. Parent comment

Re:Selection bias is the most powerful force in education by devinhelton on Tuesday August 15, 2017 @05:17PM (#15022699)
Integrated schools help to reduce racial achievement gaps. In fact, the racial achievement gap in K–12 education closed more rapidly during the peak years of school desegregation in the 1970s and 1980s than it has overall in the decades that followed—when many desegregation policies were dismantled.

Why I don't find that evidence convincing: https://news.ycombinator.com/item?id=13904403

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Re:Selection bias is the most powerful force in education by frgtpsswrdlame on Tuesday August 15, 2017 @05:24PM (#15022764)
Care to summarize? It's a wall of quotes.
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Re:Selection bias is the most powerful force in education by goialoq on Tuesday August 15, 2017 @06:09PM (#15023160)
Summary from the post: "My take is that if desegregation has any impact on achievement, it is small and drowned out by other factors."
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