The goal of this study was to examine IXL usage among high school students in California and its relation to academic performance in math and ELA, as measured by the Smarter Balanced Summative Assessment (SBA). At the high school level in California, the SBA is taken only by 11th- grade students each year. We analyzed students' math and ELA SBA…

This REL West study explores the prevalence of students repeating Algebra I, who is most likely to repeat the course, and the level of improvement for students who repeat. Using six years of data from a cohort of 3,400 first-time seventh grade students in a California school district, authors found that 44 percent of students repeated algebra I.…

We use visualization to find patterns in educational data. We represent student scores from high-stakes exams as flow vectors in fluids, define two types of streamlines and trajectories, and show that differences between streamlines and trajectories are due to regression to the mean. This issue is significant because it determines how quickly…