Four-day school weeks have proliferated across the United States, but little is known about their implementation or their effects on students. This study uses district-level data from Oklahoma  to provide estimates of the causal effect of the 4-day school week on high school students’ ACT scores, attendance, and disciplinary incidents during school.

This study reports achievement and growth from kindergarten to 4th grade for three groups of English Learners. The findings suggest summer support is required to help ELs maintain and develop academic skills.

This study reports achievement and growth from kindergarten to 4th grade for three groups of English Learners. The findings suggest summer support is required to help ELs maintain and develop academic skills.

This study examined the stability of social-emotional learning (SEL) skills and the extent to which students’ initial level in SEL skills in 6th grade and growth in SEL skills from 6th to 8th grade are related to students’ successful transition to secondary school. Findings suggest that understanding how a student develops social-emotionally can improve identification of students not on track to succeed in high school.

To avoid the subjectivity of having a single person evaluate a construct of interest (e.g., a student’s self-efficacy in school), multiple raters are often used. This study provides a model for estimating growth in the presence of multiple raters.

This study reports achievement levels and fall-to-spring gains in grades K to 8 for three groups of English Learners (ELs):  ever-ELs who were ever eligible for service; current-ELs who continue to require service; and dually-identified students eligible for both EL and Special Education services.