To examine a response to treatment model as a means for identifying students with reading/learning disabilities, 45 second-grade students at risk for reading problems were provided daily supplemental reading instruction and assessed after 10 weeks to determine if they met a prior criteria for exit. Students who met criteria no longer received supplement pp tal instruction. Those who did not were, regrouped and supplemental instruction was continued Or, another 10 weeks. After 20 weeks of supplemental instruction, students who still had not met criteria were provided another 10 weeks of supplemental instruction. Students who never met criteria were classified as no exit. Pretest scores fluency, passage comprehension ion, and rapid naming were the significant predictors of students who did not meet exit criteria.