132b. Direct Instruction: the evidence
Education Bookcast
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IQ Gains for Children With Entering IQs in the 71 to 19 Range
Gains for children with entering IQs in the 71 to 19 range are 15.6 and 9.2 respectively. That's more than one standard deviation of IQ right so that would move you from the 50th percent of from being exactly in the middle to around the 85th okay? "That is an enormous difference," he says. 'This again is another thing that reminds me of Marva Collins'
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