In this meta-analysis, I have reviewed published and unpublished research on single-track, year-round education's effect on science and social studies achievement, 2001-2016. Of 30 studies that met inclusion criteria and had data from which an effect size estimate could be calculated, 7 reported science outcomes (18 effect size estimates) or…

The Focused Practice Instructional Approach (FPIA) was based on the Environmental Mode of instruction established by George Hillocks' 1986 meta-analysis for writing instruction. The purpose of this study was to clearly define the FPIA approach using the original studies and test if it was significantly effective in fourth grade classrooms using…

This meta-analysis assesses the effectiveness of volunteer tutoring programs for improving the academic skills of students enrolled in public schools Grades K-8 in the United States and further investigates for whom and under what conditions tutoring can be effective. The authors found 21 studies (with 28 different study cohorts in those studies)…