The purpose of this investigation was to assess the effects of the "Reading Success Level A" program on the comprehension skills of 93 fourth graders across four general education classrooms. Two general education teachers participated in this study over a 6-month period. Pre- and posttest data were collected on individual student performance using the "Scholastic Reading Inventory" ("SRI"). In addition, within-program assessments including mastery quizzes and tests were administered as part of the program. Results showed that students who participated in "Reading Success Level A" demonstrated statistically significant gains in reading comprehension performance. In addition, at-risk readers made similar gains to those readers who were not at-risk indicating that "Reading Success Level A" was effective across students. (Contains 3 tables.)