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Download full textHanson, Ralph A.; Bailey, Jerry D. – 1983
This study describes a method for providing easily understood information on the comparative instructional program effects of using multiple instructional products. The method was derived in the context of a national evaluation of three instructional product systems each of which was used to teach readiness and initial reading skills to…
Descriptors: Academic Achievement, Evaluation Methods, Federal Aid, Instructional Material Evaluation
