This study compared the effects of the Direct Instruction reading program, Corrective Reading, with reading instruction designed by a reading specialist. Adjudicated adolescent males who were well below grade level served as the population of interest. Results indicate that the majority of students who received instruction through Corrective Reading achieved moderate to large gains on the Woodcock Johnson Reading Mastery Test, while the majority of students who received instruction designed by the reading specialist demonstrated moderate to large losses. (Copyright © 2011, National Institute for Direct Instruction (NIFDI). All rights reserved).