This brief examined the patterns of reading achievement using statewide data from all students (Grades 3-10) in multiple years to examine gaps based on student, school, and district characteristics. Results indicate reading achievement varied most between students within schools and that students' prior achievement was the strongest predictor of…

There is no comprehensive database of U.S. district-level test scores that is comparable across states. We describe and evaluate a method for constructing such a database. First, we estimate linear, reliability-adjusted linking transformations from state test score scales to the scale of the National Assessment of Educational Progress (NAEP). We…

This is a causal comparative research study that investigates the effects of poverty on student academic achievement within various subgroups in Nassau and Suffolk counties on Long Island, NY. Existing data for approximately 124 school districts from the published New York State Report Card (NYSRC) were used to operationalize the study. The…

If teacher value-added estimates (VAEs) are to be used as indicators of individual teacher performance in teacher evaluation and accountability systems, it is important to understand how much VAEs are affected by the data and model specifications used to estimate them. In this study we explored the effects of three conditions on the stability of…

"IXL Learning" contracted with Empirical Education to study the effectiveness of "IXL Math" in Beaverton School District. During the 2011-2012 year, "IXL Math," an interactive, cloud-based practice environment, was used to supplement instruction in two elementary/middle schools. This study focused on 4th and 5th grade…