We present a method for data-based decision making at the school level using student achievement data. We demonstrate the potential of a national assessment database [i.e., the University of Oregon DIBELS Data System (DDS)] to provide comparative levels of school-level data on average student achievement gains. Through the DDS as a data source,…

This article presents findings of an efficacy trial examining the effect of a multitiered instruction and intervention model on first grade at-risk students' reading outcomes. Schools (N = 16) were randomly assigned to the treatment or control condition. In the fall of Grade 1, students were assigned to an instructional tier on the basis of…

In this study, the authors conceptualize teaching episodes such as an integrated set of observable student-teacher interactions. Instructional interactions that take place between teachers and students around critical academic content are a defining characteristic of classroom instruction and a component carefully defined in many education…

In this article, we examine the contribution of initial skill and slope of progress on alphabetic principle to end of first-grade reading outcomes. Initial skill and slope were measured using DIBELS Nonsense Word Fluency. Reading outcomes were measured at the end of first grade with DIBELS Oral Reading Fluency. Students in Oregon Reading First…

A theory-based approach was used to investigate the relations among Nonsense Word Fluency (NWF) initial skill status in the fall of first grade, NWF growth across the school year, and end-of-year oral reading fluency and reading comprehension (RC) skill. Hypotheses were anchored to Perfetti's verbal efficiency theory and the role of automaticity…