In this meta-analysis, I have reviewed published and unpublished research on single-track, year-round education's effect on science and social studies achievement, 2001-2016.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…

This dissertation reports a study of a year-round school in comparison to a traditional calendar school and whether the year-round school calendar was related to higher student achievement in a large, school district in the southeastern United States. The data represented the results of third through fifth grade student state test scores in the…