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Quote by James Crawford

“the federal Institute of Education Sciences reviewed these studies and found all of them lacking—that is, none could “establish that the comparison group was comparable to the intervention group prior to the start of the intervention.” quote by James Crawford
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““the federal Institute of Education Sciences reviewed these studies and found all of them lacking—that is, none could “establish that the comparison group was comparable to the intervention group prior to the start of the intervention.””

James Crawford

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