Single-case research design is a useful methodology for evaluating the presence of a functional relation between an intervention and the mathematical performance of students with a learning disability. However, a functional relation cannot be established with threats to internal validity of the design. External validity is impacted if researchers…

Students with dyslexia demonstrate reading difficulty in early literacy skills (e.g., phonemic awareness, word recognition, decoding), and administering screeners is a necessary step to implement effective intervention. There are several commonly used reading screeners, but the decision accuracy and predictive value between them varies. In the…

Although many social-emotional learning (SEL) surveys exist for the general student population, students with learning disabilities (SwLD) are often excluded during the survey development process, and the current SEL surveys often overlook critical SEL competencies for SwLD (e.g., self-advocacy), necessitating an SEL survey for SwLD. To address…

This meta-analysis examined the ecological and population validity of intervention research for students with low mathematics achievement (SWLMA). Forty-four studies published between 2005 and 2019 that met the inclusionary criterion were included in this analysis. Our findings suggest, to improve the external validity and generalizability of…

This study represents an initial examination of the potential of word dictation (WD), a form of curriculum-based measure, to identify risk in writing for young English language learners (ELs). The sample included 73 ELs with beginning to advanced English language proficiency in the first to third grades attending schools in one U.S. Midwestern…

The main purpose of this study was to validate the curriculum-based measure "Indicadores de Progreso de Aprendizaje en Matemáticas" (IPAM [Indicators of Basic Early Math Skills]) in a local, Spanish-speaking context. This tool has been designed to identify first-grade students at risk for mathematics learning disabilities. The IPAM…

Many states now mandate early screening for dyslexia, but vary in how they address these mandates. There is confusion about the nature of screening versus diagnostic assessments, risk versus diagnosis, concurrent versus predictive validity, and inattention to indices of classification accuracy as the basis for determining risk. To help define what…