In education research, statistical significance and effect size are 2 sides of 1 coin; they complement each other but they do not substitute for each other. This descriptive study, however, was limited to effect size only because years of experience with Idaho statewide student samples of up to 24,000 the rare outcomes has been t-tests with…

Istation is a digital-based instructional intervention tool for various content areas aimed at pre-K through 8th grade learners. The Istation Reading program consists of formative assessments, named Istation Indicators of Progress (ISIP™), which are computer-adaptive and diagnostic literacy assessments designed to track student growth over time.…

This brief provides a summary of Tier 3 or "promising" evidence of Istation's Early Reading program in improving K-3 student performance in reading and English language arts (ELA). This quasi-experimental study examined whether students who attended schools that piloted Istation's Early Reading program during the 2017-18 school year had…

This brief provides a summary of the validity of Istation ISIP Early Reading scores in predicting students' performance levels on the Idaho Standards Achievement Test (ISAT) in English language arts (ELA). This correlational study analyzed how well third grade students' winter performance on the ISIP Early Reading test predicted their spring…

Charter schools represent an increasingly important form of school choice in the United States. Charter schools are public schools, with a difference. Compared to traditional public schools, they are exempted from some of the state laws and regulations that govern traditional public schools. In this way, parents come to have a greater number of…

In partnership with Joint School District 2 in Meridian, Idaho, this theory-driven study assessed the impact of Keeping Learning on Track® (KLT™), a professional development program pioneered by Dylan Wiliam and his colleagues at the Educational Testing Service (ETS). A team of Northwest Evaluation Association™ (NWEA™) researchers surveyed…

Policymakers and practitioners frequently use teacher surveys to inform decisions on school improvement efforts in low-achieving schools. There is little empirical evidence on how the results of these surveys relate to student outcomes. This study provides information on how perception data from a teacher survey in Idaho is correlated with three…

This study investigated the effects of using modified items in achievement tests to enhance accessibility. An experiment determined whether tests composed of modified items would reduce the performance gap between students eligible for an alternate assessment based on modified achievement standards (AA-MAS) and students not eligible, and the…

This report provides information about the performance of 2010 graduating seniors who took the ACT as sophomores, juniors, or seniors; and self-reported at the time of testing that they were scheduled to graduate in 2010 and tested under standard time conditions. This report focuses on: (1) Performance: student test performance in the context of…

This study featured validity evidence for scores from states' alternate assessments of alternate academic achievement standards (AA-AASs). It evaluated students from 6 states who were eligible for an AA-AAS concurrently with measures of academic competence and adaptive behavior. The investigators also assessed students with disabilities who were…

This report presents results of the 2009 National Assessment of Educational Progress (NAEP) in reading and mathematics at grade 12. Results for students in the nation and, for the first time, in the 11 states that volunteered to participate in the 2009 state pilot program are reported as average scores and as percentages of students performing at…

Two schools in Idaho received ARRA SIG (American Recovery and Reinvestment Act School Improvement Grants) funds to enable them to implement improvement efforts. This paper describes the outcomes of these two ARRA SIG recipient schools: (1) Jefferson Middle School; and (2) Lakeside Elementary School. The experiences of this non-recipient school is…

In 1990, the National Assessment of Educational Progress (NAEP) included a Trial State Assessment (TSA); for the first time in NAEP's history, voluntary state-by-state assessments were made. In 1994, TSA was expanded to include non-public school students. The 1994 reading assessment considered students' proficiency in situations that involved…

In 1990, the National Assessment of Educational Progress (NAEP) included a Trial State Assessment (TSA); for the first time in NAEP's history, voluntary state-by-state assessments were made. In 1992, the NAEP Program included an expanded TSA in fourth-grade reading. The 1992 reading assessment considered students' performance in situations that…

This report provides selected results from the 2002 National Assessment of Educational Progress (NAEP) for Idaho's public-school students at grades 4 and 8. Since 1992, reading has been assessed in four different years at the state level (at grade 4 in 1992 and 1994, and at both grades 4 and 8 in 1998 and 2002). Idaho participated in the 1992,…