Data Mountain is a self-determination program that has shown early promise in enhancing the oral reading fluency (ORF) of students with or at risk for reading disabilities (RD). This program supports self-determined learning behaviors through explicit teaching of self-monitoring, goal setting, and positive attributions. The present study tested the effects of Data Mountain on the ORF of 81 students with or at risk for RD in second through fifth grades, randomly assigned to one of three conditions: Data Mountain delivered in small groups, Data Mountain delivered individually, or a comparison condition. Results from hierarchical linear modeling indicated that treatment students read an average of 31 more words per minute with a growth rate twice that of comparison students (p < 0.01). The transferable possibilities of Data Mountain to provide students with an opportunity to learn self-determination skills and support ORF is significant to the field of special education.