Since the start of the new millennium, many states have launched or expanded private school choice options, permitted and expanded independently operated public charter schools, eased restrictions on homeschooling, and enacted policies that allow and encourage various forms of public school choice. One thing that is not on the rise, unfortunately,…

Researchers explored how 13 states in which policymakers have adopted an A-F school letter grade accountability system performed on the National Assessment of Educational Progress (NAEP) post-policy implementation. Researchers found mixed results, with approximately half of these 13 states increasing achievement post-policy, and the other…

Arizona has played a large part in the development and implementation of policy that directly inhibits equity of opportunity for the English learner (EL) population, the largest and most damaging of which came out of legislation passed due to the "Flores v. Arizona" case which concluded in 2015. This research article seeks to critically…

The purpose of this qualitative descriptive study was to explore how special education teachers describe selecting and applying differentiated instructional strategies for students with mild, moderate, to severe disabilities in self-contained classrooms within a school district in Arizona. Jean Piaget's social constructivism theory and Carol Ann…

The purpose of this research study was to determine if there was an academic achievement gap between third through eighth-grade students in Title I and Non-Title I schools in the academic content areas of English Language Arts and Mathematics. The study focused on the following subgroup: economically disadvantaged students. The data was gathered…

The purpose of this paper is to showcase new research that seeks to provide guidance on the heterogeneity of treatment effects by utilizing the variance of demographic differences in state assessments. This study is focused on a simple randomized block design where students are nested within schools, and within each school students are randomized…

We examined instructional processes in classrooms where students with and without disabilities received mathematics instruction to understand the relationship among key instructional process variables and achievement as measured by interim and end-of-year summative assessments. Teachers (N = 78) completed instructional logs daily and administered…

Business leaders in Arizona cannot find the science, technology, engineering and mathematics (STEM) talent they need to stay competitive. Students' lagging performance in K-12 is a critical reason why. The good news is that the nation's most effective STEM education programs can help turn the tide. Arizona students have already made real progress…

Arizona has grown rapidly over the years and our education system has grown in step with the population. But increasing the total budget for education doesn't mean that we have directed more resources to each student. The numbers show that Arizona has one of the lowest per-pupil funding rates in the country. Parties of one faction or another argue…

Randomized experiments are often considered the strongest designs to study the impact of educational interventions. Perhaps the most prevalent class of designs used in large scale education experiments is the cluster randomized design in which entire schools are assigned to treatments. In cluster randomized trials (CRTs) that assign schools to…

Background: Cluster-randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…

The "GeoLiteracy for English language learners" (ELLs) program is a curriculum that enhances reading and writing skills while teaching geography content for US students in kindergarten through eighth grades. The program includes 85 lesson plans that address all US national geography standards, a quarter of which address environmental…

A vertical scale, in principle, provides a common metric across tests with differing difficulties (e.g., spanning multiple grades) so that statements of "absolute" growth can be made. This paper compares 16 states' 2007-2008 effect size growth trends on vertically scaled reading and math assessments across grades 3 to 8. Two patterns…

This paper profiles Arizona's test score trends through 2008-09. Between 2005 and 2009, the percentages of students reaching the proficient level on the state test and the basic level on NAEP (National Assessment of Educational Progress) increased in grades 4 and 8 in both reading and math. Average annual gains were generally larger on the state…

This study explored the relationships among the components of the Arizona Department of Education's new teacher evaluation model, with a particular focus on the extent to which ratings from the state model's teacher observation instrument differentiated higher and lower performance. The study used teacher-level evaluation data collected by the…