Although Oregon has made recent gains in its overall high school graduation rate, 21?percent of public school students entering grade?9 in 2014 did not graduate within four years, by 2018. To improve graduation rates, Oregon voters approved Ballot Measure 98 in 2016 to fund dropout prevention and college and career readiness initiatives in high…

Building on previous research showing how well ninth-grade student behaviors predict on-time high school graduation, this experimental study investigates the impact of a ninth-grade intervention on student attendance and course passing. The study, conducted in 41 geographically and demographically diverse high schools within a single state,…