States and districts have been increasing the time students spend in kindergarten in the hope it will boost later outcomes. Oregon began funding full-day kindergarten in 2015/16. REL Northwest, in partnership with the Oregon Department of Education (ODE), is conducting a study to examine whether the transition from half- to full-day kindergarten has impacted student outcomes in math and reading, attendance, English proficiency, discipline, and grade retention. The study will also describe the instructional activities and teaching practices being used in full-day kindergarten classrooms across the state.

^{*This study is ongoing or in progress. For the most recent results, see their website or contact the study contact listed below.}