Christian T. Doabler

Repeated Reading Interventions for Students with Learning Disabilities: Status of the Evidence:

For students with or at risk for learning disabilities, developing fluency with reading connected texts remains a formidable challenge. In response, teachers often use repeated reading practices designed to provide students with multiple exposures to the same words. This study examined research focused on determining the efficacy of repeated reading approaches for improving reading fluency for students with or at risk for learning disabilities. Studies employed experimental/quasi-experimental and single-subject research designs. Results suggest that repeated reading is not supported by rigorous research as defined by the quality indicators used and, therefore, is not an evidence-based practice based on those criteria for students with and at risk for learning disabilities. Implications for future research and for practice are discussed.

Teaching Writing to At-Risk Students: The Quality of Evidence for Self-Regulated Strategy Development

This study evaluates the quality of the research and evidence base for a writing intervention called Self-Regulated Strategy Development (SRSD; Graham & Harris, 1989; Harris & Graham, 1996) for students with and at risk for learning disabilities, using criteria for group research studies suggested by Gersten et al. (2005) and single-subject research studies suggested by Horner et al. (2005). Five experimental and quasi-experimental studies and 16 single-subject studies investigating SRSD were analyzed on numerous methodological dimensions. Both the group design and single-subject studies also met proposed standards for an evidence-based practice. The potential value of analyzing approaches and interventions using the proposed quality indicators and standards for evidence-based practices is discussed, as are implications for research and practice.

The Impact of a Comprehensive Tier I Core Kindergarten Program on the Achievement of Students at Risk in Mathematics.

This study examined the efficacy of a core kindergarten mathematics program, ELM, a 120-lesson comprehensive curriculum providing instruction in (a) number operations, (b) geometry, (c) measurement, and (d) vocabulary. ELM is designed to address the learning needs of all students, including at-risk students in the general education or Tier I classroom setting. The study utilized a randomized block design, with 64 classrooms randomly assigned within schools to treatment (ELM) or control (standard district practices) conditions. Measures of achievement were collected at pretest and posttest to measure student achievement. Students did not differ on mathematics assessments at pretest. Gain scores of at-risk treatment students were significantly greater than control peers, and the gains of at-risk treatment students were greater than the gains of peers not at risk, effectively reducing the achievement gap. Implications for Tier I instruction in a Response to Intervention (RTI) model are discussed.

Examining the Association between Explicit Mathematics Instruction and Student Mathematics Achievement.

Explicit instruction is a systematic instructional approach that facilitates frequent and meaningful instructional interactions between teachers and students around critical academic content. This study examined the relationship between student mathematics outcomes and the rate and quality of explicit instructional interactions that occur during core mathematics instruction in kindergarten classrooms using a multifaceted observation system. A total of 379 observations were conducted in 129 classrooms, involving approximately 2,200 students across a 2-year span. Results suggest that the rate and quality of instructional interactions is related to student mathematics achievement. Implications for instruction and observation research are discussed.

Explicit Mathematics Instruction: What Teachers Can Do for Teaching Students With Mathematics Difficulties.

This article describes the essential instructional elements necessary for delivering explicit mathematics instruction to students with mathematics difficulties. Mathematics intervention research indicates that explicit instruction is one of the most effective instructional approaches for teaching students with or at risk for math difficulties. Explicit instruction is a systematic approach that facilitates important instructional interactions between teachers and students around critical math content. This article describes a framework for delivering explicit math instruction in the early grades. Although the explicit framework is relevant across the range of early math content (i.e., measurement, geometry), the focus is on explicit instruction in the context of teaching place value concepts in kindergarten and first grade classrooms. Place value is a critical component of whole-number understanding and a necessary concept for students to develop mathematical proficiency. Key questions associated with explicit math instruction are also addressed.

Enhancing Core Mathematics Instruction for Students at Risk for Mathematics Disabilities.

CRA) approach (Hudson & Miller, 2006). As part of the CRA approach, a teacher might begin instruction with concrete examples (e.g., counting blocks) and then interweave pictorial representations (e.g., tally marks) and abstract symbols (e.g., numbers) as students grasp conceptual

Evaluating Three Elementary Mathematics Programs for Presence of Eight Research-Based Instructional Design Principles

The present review builds on earlier research that evaluated the curricular features of core math programs to improve the performances of students with or at risk for mathematics difficulties. In this review, three elementary math programs, at Grades 2 and 4, were evaluated for the presence of eight instructional principles. Math intervention studies have empirically validated these principles for promoting math proficiency of students struggling with mathematics. Data were collected via a researcher-developed scoring rubric. Findings indicate that adherence to the instructional principles varied markedly within and across programs. In addition, the results indicated that the current textbooks contain a general lack of explicit instruction and provide too few practice opportunities to teach material to mastery. Implications for future curricular reviews and enhancing core math instruction are discussed.

Examining the Efficacy of a Tier 2 Kindergarten Mathematics Intervention

This study examined the efficacy of a Tier 2 kindergarten mathematics intervention program, ROOTS, focused on developing whole number understanding for students at risk in mathematics. A total of 29 classrooms were randomly assigned to treatment (ROOTS) or control (standard district practices) conditions. Measures of mathematics achievement were collected at pretest and posttest. Treatment and control students did not differ on mathematics assessments at pretest. Gain scores of at-risk intervention students were significantly greater than those of control peers, and the gains of at-risk treatment students were greater than the gains of peers not at risk, effectively reducing the achievement gap. Implications for Tier 2 mathematics instruction in a response to intervention (RtI) model are discussed.

The Science Behind Curriculum Development and Evaluation Taking a Design Science Approach in the Production of a Tier 2 Mathematics Curriculum

The production of an effective mathematics curriculum begins with a scientific development, evaluation, and revision framework. The purpose of this study was to conduct an initial investigation of a recently developed Tier 2 mathematics curriculum designed to improve the outcomes of first grade students at risk for mathematics difficulties (MD). The curriculum, which is anchored to a scientific design framework and a well-specified theory of change, centers on the careful integration of foundational concepts of whole number and validated-design principles of explicit and systematic instruction. Four instructional groups, with each consisting of five first grade students with MD and one interventionist, participated in the study. Data related to the feasibility, usability, and promise of the curriculum to improve student mathematics achievement were collected using multiple methods. Results provide preliminary evidence in terms of these curriculum development and evaluation areas. Implications for instruction and design research are discussed.

Investigating the Efficacy of a Core Kindergarten Mathematics Curriculum to Improve Student Mathematics Learning Outcomes

This study examined the efficacy of a core kindergarten mathematics program, Early Learning in Mathematics (ELM), a 120-lesson program with four content strands: (a) number operations, (b) geometry, (c) measurement, and (d) vocabulary. The study utilized a randomized block design, with 129 classrooms randomly assigned within schools to treatment or control conditions. Measures of achievement were collected in the fall (pretest) and spring (posttest) in kindergarten and in the winter of first grade (follow-up). Although students in ELM classrooms did not differ significantly from students in control classrooms, we expected and found that the effects of ELM depended on students’ initial achievement. Initial achievement moderated condition effects for Test of Early Mathematics Ability (TEMA) scores (p =.0039), but not the Early Numeracy–Curriculum-Based Measurement (p =.1887). We found no effects on follow-up first-grade scores from the Stanford Achievement Test Tenth Edition Problem Solving subtest (p =.9737) or Procedures subtest (p =.6336).