This study evaluated the efficiency of the Lexia Reading Program in 132 early elementary school students in an inner-city school in Hartford, Connecticut. Students who met the criteria were assigned to the experimental Lexia group, and other students were randomly assigned to a comparison group. The NWEA MAP was used to provide pre and post measures of literacy skills. Results indicated that students who used Lexia outperformed students in the control group (p < 0.01): their MAP scores increased from 157 to 174, a 17-point increase, while the control group's scores increased from 166 to 171, a 5-point increase. The Lexia reading program appears to be an effective tool to improve the literacy skills of struggling first- to third-grade readers.