The purpose of this study is to examine if low SES students respond differently to Tier I and Tier II interventions than Non-Low SES students. The study also seeks to determine the effect Tier I and Tier II interventions have on a group of second grade students. Forty-four Tier I and Tier II Caucasian second grade students from a rural Ohio elementary school were included in this study. No significant differences were found between the reading levels of low-SES and Non-Low-SES students prior to or after implementation of RTI. Significant differences were found between the AIMSweb fall and winter benchmarks as a result of Tier I and Tier II interventions. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]