An essential question when computing test--retest and alternate forms reliability coefficients is how many days there should be between tests. This article uses data from reading and math computerized adaptive tests to explore how the number of days between tests impacts alternate forms reliability coefficients. Results suggest that the highest…

Background: Computerised adaptive tests (CATs) are tests that provide personalised, efficient and accurate measurement while reducing testing time, depending on the desired level of precision. Schools have different types of assessments that can benefit from a significant reduction in testing time to varying degrees, depending on the area of…

A common practical challenge is how to assign ability estimates to all incorrect and all correct response patterns when using item response theory (IRT) models and maximum likelihood estimation (MLE) since ability estimates for these types of responses equal -8 or +8. This article uses a simulation study and data from an operational K-12…

To ensure that student academic growth in a subject area is accurately captured, it is imperative that the underlying scale remains stable over time. As item parameter stability constitutes one of the factors that affects scale stability, NWEA® periodically conducts studies to check for the stability of the item parameter estimates for MAP®…

This report provides an update on the state of the research on testing accommodations. Previous reports by the National Center on Educational Outcomes (NCEO) have covered research published since 1999. In this report, we summarize the research published in 2020. During 2020, 11 research studies addressed testing accommodations in the U.S. K-12…

Federal law requires all public school students in grades three to eight to take an annual assessment in reading and math at the end of the year and requires students to take an assessment once during high school. The goal of this assessment is to measure the extent to which all students are meeting the state's academic standards. These standards…

The National Assessment of Educational Progress (NAEP) is the largest nationally representative and continuing assessment of what the nation's students know and can do in various subjects such as mathematics, reading, science, and writing, as well as civics, geography, technology and engineering literacy, and U.S. history. The results of NAEP are…

The purpose of this report is to present a synthesis of the research on test accommodations published in 2015 and 2016. We summarize the research to review current research trends and enhance understanding of the implications of accommodations use in the development of future policy directions, to highlight implementation of current and new…

The goal of this study was to gather comprehensive evidence about the alignment of the Smarter Balanced summative assessments to the Common Core State Standards (CCSS). Alignment of the Smarter Balanced summative assessments to the CCSS is a critical piece of evidence regarding the validity of inferences students, teachers and policy makers can…

Although International Association for the Evaluation of Educational Achievement-pioneered international large-scale assessment (ILSA) of education is now a well-established science, non-practitioners and many users often substantially misunderstand how large-scale assessments are conducted, what questions and challenges they are designed to…

The Elementary and Secondary Education Act (ESEA), as amended by the Every Student Succeeds Act (ESSA; P.L. 114-95), specifies the requirements for the state assessments that states must incorporate into their state accountability systems to receive funding under Title I-A. Title IA of the ESEA authorizes aid to local educational agencies (LEAs)…

The study authors examined the effects of using "Diagnostic Assessment Tools" ("DAT") on mathematics and reading outcomes for students in Indiana schools during the 2009-10 academic year. "DAT" consists of interim assessment tools--Wireless Generation's mCLASS for students in grades K-2 and CTB/ McGraw-Hill's Acuity…

We know that knowledge of word structure--morphology--relates to reading, but there is limited research on its unique contribution to reading comprehension, especially with students in middle and high schools and with the nesting of students within classrooms taken into account. In this study with 4780 students in grades 3 to 10, we examined how…

The FAIR-FS consists of computer-adaptive reading comprehension and oral language screening tasks that provide measures to track growth over time, as well as a Probability of Literacy Success (PLS) linked to grade-level performance (i.e., the 40th percentile) on the reading comprehension subtest of the Stanford Achievement Test (SAT-10) in the…

Between March and June of 2014, the Smarter Balanced Assessment Consortium conducted a field test of its new online assessment system. Thirteen participating states provided the results of surveys given to students and adults involved in the Field Test. Overall, more than 70% of test coordinators in each of seven states indicated that the Field…