The relationship between reading fluency and comprehension was evaluated in five 4th-grade students. These students were identified as being at risk of not meeting yearly goals in reading fluency and comprehension based on fall benchmark assessment data. A brief intervention assessment was used to determine which intervention components would be essential to improving reading fluency across the five participants. As a result, the combination of repeated practice with performance feedback and error correction was implemented using instructional-level reading materials twice per week for 30-minute sessions with progress monitored weekly using AIMSweb measures of oral reading fluency and comprehension. Empirical, single-case designs were used to evaluate the impact of the program across these five students with assessed, generalized improvements in comprehension. Results indicated increased rate of words read correctly per minute with generalized increases in comprehension for four of five participants. Implications for practice and directions for future research are discussed. C 2010 Wiley Periodicals, Inc.As school psychologists are increasingly working within a changing model of service delivery, Response to Intervention (RtI; Brown-Chidsey & Steege, 2005), they require valid and reliable measures to assess students' progress within the curriculum and their response to changes in instruction. Curriculum-based measurement (CBM) is a valid and reliable system developed at the University of Minnesota more than 30 years ago to be part of a problem-solving approach for special educators evaluating students' progress toward Individualized Education Program (IEP) goals and objectives (Deno & Mirkin, 1977). Increasingly, school psychologists are using this measurement technology to assess general education students' proficiency in basic skill areas (e.g., reading, math, written expression, spelling) and to monitor students' progress within the curriculum. CBM is well-matched to this task as these procedures are brief, requiring 1 to 3 minutes to administer; grade appropriate, resembling the typical tasks (e.g., reading aloud) and materials (e.g., reading passages) used in instruction; repeatable, providing alternate forms of equivalent difficulty; and sensitive, reflecting small changes in performance over time (Shapiro, 2004). As school psychologists work within a problem-solving model, CBM procedures yield essential data to inform their decision making about students' growth in response to instruction (Deno, Espin, & Fuchs, 2002).CBM is described as a general outcome measure, meaning that these test procedures do not measure all aspects of a child's academic performance but serve as indicators of academic proficiency (Deno, 1985). The most frequently used and researched CBM of reading proficiency (R-CBM) assesses oral reading fluency. When R-CBM is assessed, students are asked to read aloud from grade-appropriate passages for 1 minute. Substitutions, omissions, and errors in pronunciation are noted, and the number of c...