© 2025 Vista Higher Learning Vista’s Bridges: A Study of Reading Growth in MLs 18 The instruction provided to the treatment group including using Bridges was equally effective with both boys and girls. The following analysis examined whether boys or girl benefited more from participation in the Bridges program compared to traditional instruction. Table 9 ANCOVA Results Comparing Bridges and Control Groups by Sex: iReady Reading Skills Posttest Scores Adjusted for Initial Reading Level Source Type III Sum of Squares Df Mean Square F Sig Corrected Model 840713.01 4 210178.25 117.21 <.001 Intercept 29221.73 1 29221.73 16.30 <.001 iReady Fall 2024 Assessment 788111.17 1 788111.17 439.51 <.001 Study Group 16051.79 1 16051.79 8.95 .003 Sex 400.43 1 400.43 .22 .637 Study Group Sex 2722.24 1 2722.24 1.52 .219 Error 817677.69 456 1793.15 Total 138176294.00 461 Results confirmed that students in the Bridges group outperformed those in the control group overall, but there were no significant differences between boys and girls. The program was equally effective for both sexes. The adjusted mean posttest scores by sex are shown below to illustrate how boys and girls in each group performed after instruction. Table 10 Adjusted Mean iReady Reading Posttest Scores by Sex and Study Group Study Group Sex N Mean SD Control Girls 122 526.97 58.035 Control Boys 106 550.00 57.362 Total 228 537.68 58.735 Treatment Girls 125 546.99 60.122 Treatment Boys 108 554.67 61.488 Total 233 550.55 60.749 Total Girls 247 537.10 59.827 Total Boys 214 552.36 59.387 Total 461 544.18 60.043
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