Data Mining
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The Cost-Effectiveness of Five Policies for Improving Student Achievement
It is important to select interventions that have the greatest impact we can afford. Using Stuart Yeh’s effectiveness cost ratio formula, a rough comparison can be drawn comparing class size reduction with other educational interventions.
Yeh, S. S. (2007). The Cost-Effectiveness of Five Policies for Improving Student Achievement, American Journal of Evaluation, 28(4), 416-436.