Christian Doabler

The purpose of this initial efficacy study is to assess whether algebraic reasoning instruction, conducted within the context of word-problem intervention, leads to increases word-problem performance on one- and multi-step word problems. Research indicates students with mathematics difficulty (MD) demonstrate lower performance on setting up and solving word problems compared to peers without MD. The use of schemas has been shown to be an effective method of word-problem instruction for stude...

The purpose of this project is twofold. The primary purpose is to conduct a replication study of a kindergarten mathematics intervention (ROOTS) for students at risk for mathematics learning disabilities (MLD) across school types and student populations intentionally selected to differ from previous efficacy studies. A secondary purpose of the project will be to investigate the relationship between intervention onset and student outcomes.

The goal of this project is to build and optimize an adaptive intervention within a multi-tiered system of supports (MTSS) model to improve elementary school students' academic and behavior outcomes. The overall adaptive intervention will consist of various combinations of academic (reading or math) and behavior (self-regulation) strategies designed to improve academic engagement and learning. Behavior problems and academic problems often co-occur, as learning difficulties may lead to frustr...

The purpose of this study is to determine the efficacy of the NumberShire Level 1 gaming intervention, aimed at improving mathematics achievement for first-grade students with or at risk for mathematics learning disabilities. Intervention to strategically accelerate math learning in early elementary school can help prevent costly remediation in later grades. According to the National Assessment of Educational Progress (2013), 45% of all fourth-grade students with disabilities scored below th...

The purpose of this study was to test the efficacy of a first-grade mathematics intervention called Fusion, aimed at developing understanding of whole numbers for students at risk for mathematics learning disabilities. According to results from the National Assessment of Educational Progress, only 42% of fourth graders performed at or above the proficient level in mathematics. Students who perform poorly in mathematics early in school are at risk for continuing to struggle in mathematics thr...

This project will examine data from four prior IES-funded projects to determine the malleable variables in classroom instruction that are associated with improvements in student achievement in reading and mathematics. There is little research on the evidence-based practices that teachers can use when working in multiple content areas with a range of learners who have varying levels of achievement. In recent years, direct observation has become a primary measurement tactic in identifying the ...