Date of Award


Degree Name

Doctor of Philosophy



First Advisor

Dr. Jack L. Michael

Second Advisor

Dr. Kristal Ehrhardt

Third Advisor

Dr. Galen Alessi

Fourth Advisor

Dr. Margaret McGIinchey


This study examined the effectiveness of two Direct Instruction programs: Corrective Reading: Decoding and Connecting Math Concepts. The effectiveness of the interventions was evaluated using a single-subject experimental design with curriculumbased measurement (CBM) probes as the main means of assessment. Other methods of assessment included standardized achievement tests, school reports, and pre- and postcurriculum- based assessment probes. The CBM probes for all students were sensitive to the effects of the interventions, although there was a great deal of variability in the CBM reading probes and little correspondence across methods of assessment. The results indicate that the two Direct Instruction programs were effective, and that CBM probes can be used successfully to evaluate the effects of these interventions.

Access Setting

Dissertation-Open Access