Table 3 Results from Moderator Analysis of Reading Comprehension Outcomes Mean Moderator Level Number of SE p Effect Effect Sizes Value Size < 115 9 0.09 0.03 Hrs 3.23 0.07 115+ 7 0.25 0.08 1–4 8 0.24 0.10 Group Size 2.33 0.13 5+ 11 0.08 0.03 Grade 5–6 5 0.10 0.08 2.74 0.10 Level 6–8 8 0.31 0.09 Table 4 Comparison of Effect Sizes in Early Elementary and Upper Grades for Studies with 100 or More Sessions Study Characteristic Early Elementary Upper Grades (Wanzek & Vaughn, 2007) (Current Synthesis) Mean ES Range # of Mean ES Range # of ES Effects ES Effects Comprehension Outcomes .46 -.12 .92 25 .09 -.23 .84 37 Reading Fluency Outcomes .34 .00 .56 11 .12 -.01 .35 8 Word Reading Outcomes .56 -.18 1.33 53 .20 -.06 1.02 22 Word Fluency Outcomes .56 -.09 .91 .16 -10. .48 23 Spelling Outcomes .40 -.18 .88 24 .20 .01 .39 5 Duration
Table 3 Results from Moderator Analysis of Reading Comprehension Outcomes Moderator Level Number of Effect Sizes Mean Effect Size SE p Value Hrs < 115 9 0.09 0.03 3.23 0.07 115+ 7 0.25 0.08 Group Size 1–4 8 0.24 0.10 2.33 0.13 5+ 11 0.08 0.03 Grade Level 5–6 5 0.10 0.08 2.74 0.10 6–8 8 0.31 0.09 Table 4 Comparison of Effect Sizes in Early Elementary and Upper Grades for Studies with 100 or More Sessions Study Characteristic Early Elementary (Wanzek & Vaughn, 2007) Upper Grades (Current Synthesis) Mean ES ES Range # of Effects Mean ES ES Range # of Effects Comprehension Outcomes .46 -.12 .92 25 .09 -.23 .84 37 Reading Fluency Outcomes .34 .00 .56 11 .12 -.01 .35 8 Word Reading Outcomes .56 -.18 1.33 53 .20 -.06 1.02 22 Word Fluency Outcomes .56 -.09 .91 .16 -10. .48 23 Spelling Outcomes .40 -.18 .88 24 .20 .01 .39 5 Duration