This meta-analysis investigates the practical significance of the Student Success Skills (SSS) program on student achievement. Each study involved the SSS intervention, math and reading scores, at least one treatment and comparison group, and a certified school counselor. The sample involved students (n = 1,279) in Grades 4, 5, 6, 8, and 9. Overall effect sizes for math (.41), reading (.17), and the SSS program (.29) were determined. New guidelines for interpreting the results are introduced.