Abstract:
This report examines changes in mathematics and reading skills of students in a Michigan
elementary school after instruction with the Direct Instruction programs Connecting Math
Concepts: Comprehensive Edition (CMCCE) and Reading Mastery Signature Edition (RMSE).
Mathematics skills were measured by the AIMSweb curriculum-based measures and the
Michigan Educational Assessment Program (MEAP). Reading skills were measured with
MEAP data. Analyses with all measures and grades indicated that students who were
exposed to the DI programs had significantly higher scores than those without such
exposure. Almost all of the associated effect sizes were substantially larger than the
criterion typically used to denote educationally significant results.