Despite encouraging findings that show that interventions can improve students' math understanding, achievement gaps in math often persist or even widen for students who struggle. Practitioners play a significant role in closing these achievement gaps because they have the responsibility to select or design interventions. Practitioners may wish to…

We examined the mean effect of teachers' use of data-based individualization (DBI) on the performance of students with intensive learning needs across academic areas and factors influencing the effects of DBI on student achievement. A total of 57 effect sizes from 14 studies were categorized into two comparisons: DBI Only (comparisons between DBI…

In this special issue, we explore the decision-making aspect of "data-based decision-making". The articles in the issue address a wide range of research questions, designs, methods, and analyses, but all focus on data-based decision-making for students with learning difficulties. In this first article, we introduce the topic of…

Teachers must be proficient at using data to evaluate the effects of instructional strategies and interventions, and must be able to make, describe, justify, and validate their data-based instructional decisions to parents, students, and educational colleagues. An important related skill is the ability to accurately read and interpret…

Many studies have demonstrated the efficacy of reading comprehension interventions for struggling readers, including students with learning disabilities. Yet, some readers continue to struggle with comprehension despite receiving these interventions. In this article, we argue that an explicit link between cognitive psychology and intervention…

The purpose of this study was to compare the effects of peer-mediated versus teacher-directed reading intervention on the reading performance of high school sophomores. Participants (n = 57) from the lowest 25th percentile of their sophomore class in reading were assigned randomly to peer-mediated or teacher-directed intervention. Fifteen to…

Early writing interventions can help students develop the writing skills they need to experience positive educational and postsecondary outcomes, but effective intervention requires instructionally relevant assessment data. Shapiro's curriculum-based assessment (CBA) model integrates related yet distinct CBA approaches into a model that informs…

The purpose of this study was to examine how different scoring procedures affect interpretation of maze curriculum-based measurements. Fall and spring data were collected from 199 students receiving supplemental reading instruction. Maze probes were scored first by counting all correct maze choices, followed by four scoring variations designed to…