Program exposure is a key element of implementation fidelity and refers to the amount of an intervention received by participants. For students using IXL, setting a target program exposure (i.e., an IXL usage goal) both allows monitoring of implementation fidelity and enhances students' motivational and learning outcomes. IXL's proposed optimal…

The purpose of this quantitative quasi-experimental, pretest-posttest, control group design study was to investigate the effects of Response to Intervention (RtI) and computer-based programs on addressing literacy acquisition skills. This study is important because there is an inordinate number of students who are designated as requiring special…