Although quality guidelines for single-case intervention research emphasize the importance of concurrent baselines in multiple-baseline and multiple-probe designs, nonconcurrent variations on these designs persist in the research literature. This study describes a systematic review of special education intervention studies (k = 406) between 1988…

The success of teachers is tied to their effectiveness in managing student behavior. In this meta-analysis, we identified 49 single-case-design studies that evaluated the effectiveness of teacher training on their implementation of behavioral support strategies. Training was most often provided in a one-on-one format (n = 18) and included ongoing…

In this secondary analysis of a previously conducted systematic review, we analyze social validity assessments in intervention research for transition-age autistic youth. Social validity is concerned with the acceptability of the intervention goals, the acceptability and feasibility of the intervention procedures, and the perceived importance of…

In this preregistered study, we confirmed a transition-planning construct and determined its relationship with an established economic-hardship construct using parent- and youth-reported data from the National Longitudinal Transition Study 2012 and following established quality indicators of preregistered secondary data analyses studies.…

The central obligation under the Individuals With Disabilities Education Act is to provide each eligible student with a free appropriate public education (FAPE). In "Endrew F. v. Douglas County School District RE-1" (2017), the U.S. Supreme Court revised the prior substantive standard for determining FAPE that the court had developed in…

Special education teachers of color are underrepresented in research about attrition and retention, despite evidence of their role in the academic, social, and emotional success of students of color. We used critical quantitative methods and structural equation modeling to investigate the attrition and retention variability between special…

Schema instruction improves word-problem solving for students with mathematics difficulty (MD; e.g., Powell et al., 2015); however, prior research suggests that students need word-problem-specific language comprehension in addition to schema knowledge to build word-problem models (Fuchs et al., 2015, 2018). Students have general word knowledge…

This study's first purpose was to investigate effects of a fourth- and fifth-grade "next-generation" fraction intervention, which included six enhancements over a previously validated fraction intervention, designed to address career- and college-readiness standards. The study's second purpose was to assess effects of the next-generation…

The purpose of this study was to examine the efficacy of a teacher-implemented professional development program to increase the fidelity with which paraeducators use evidence-based practices (EBPs) in instruction for children with autism. Employing a modified multiple-probe design, investigators implemented the Autism Focused Intervention…

Executive function (EF), a set of neurocognitive processes, is central to students' emotional and behavioral well-being. Despite students with emotional and behavioral disorders (EBD) being at risk for negative long-term outcomes, there is a paucity of EF research with students at risk for EBD in early elementary school, an important…

Open practices, such as preregistration, registered reports, open materials, open data, open analytic code, replication, open peer review, open access, and conflict-of-interest and funding statements, support the transparency, accessibility, and reproducibility of research and other scholarship. The purpose of this review was to examine the…

Evidence-based assessment (EBA) requires that investigators employ scientific theories and research findings to guide decisions about what domains to measure, how and when to measure them, and how to make decisions and interpret results. To implement EBA, investigators need high-quality assessment tools along with evidence-based processes. We…

Qualitative research (QR) has gained visibility and acceptance in the field of special education due to early efforts to identify quality indicators focused on technical and methodological aspects of QR. Whereas these indicators focused on credibility and trustworthiness of data, this article articulates additional QR quality indicators to enhance…

Mixed-methods research (MMR) holds promise for investigating several empirical questions within special education, capitalizing on the strengths of quantitative and qualitative traditions. We present an overview of MMR in special education and quality indicators for conducting and reporting such studies. We look to the future for how MMR may…

High-quality systematic literature reviews provide a systematic process for identifying, synthesizing, and critiquing multiple studies and, in turn, inform theory, research, practice, and policy. With a focus on special education systematic reviews, we propose four core principles (i.e., coherence, contextualization, generativity, and…