Little is known about how the expansion of state pre-kindergarten (pre-k) programs affects low-income children with disabilities in Head Start. Using almost 30 years of administrative data of all Head Start programs and a differences-in-differences design, this study tests the possibility that, as state pre-k differentially draws relatively more…

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…

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.…

Schools bear the burden of funding the majority of the services received by children with autism spectrum disorder (ASD) with the assumption that spent resources will result in meaningful positive outcomes for these students. Interventions lacking empirical support remain popular in schools despite lacking or limited evidence that students will…

Sustained implementation of effective behavior support systems and practices is critical for improving academic and behavior outcomes for students with and without disabilities. Although implementation studies have identified variables facilitating sustained implementation of Tier 1 behavior support systems in schools, little research exists…

Existing approaches for training paraeducators rely heavily on intensive one-to-one coaching and may not be feasible in practice. In this study, we test a tiered training model in which all paraeducators first received group training, and then coaching was provided only for the subset who did not meet performance criteria after group training.…

Professionals play an important role in when and how families access autism services. Black families often experience disparate access to autism services compared to White families. Family Peer Advocates (FPAs) are professionals who have personal experience with the diagnostic process, school-based supports, and community-based services, and…

We tested the efficacy of a comprehensive intervention program designed for high school students across the autism spectrum, the Center on Secondary Education for Students with Autism (CSESA) model, in a cluster randomized control trial involving 60 high schools in three states (California, North Carolina, Wisconsin), with implementation occurring…

Engagement behaviors are crucial for school success and are often targeted for improvement in school-based interventions. It may be helpful for both researchers and school-based practitioners to understand the likely impacts of interventions on engagement behaviors (e.g., to understand the extent to which engagement behaviors might change with…

Disruptive behavior problems frequently emerge in the preschool years and are associated with numerous, long-term negative outcomes, including comorbid disorders. First Step is a psychosocial early intervention with substantial empirical evidence supporting its efficacy among young children. The present study reports on a validation study of the…

Secondary data analyses occur when new analyses are proposed for existing data. Although they are prevalent in special education research, there is little guidance on how to prepare secondary data analyses studies. Preregistration of secondary data analyses studies provides a nice opportunity and structure for fellow researchers to share…

As more schools adopt inclusive practices, the need for schools to understand how students perceive these practices grows. The current study explores K-12 students' perceptions of co-teaching through a systematic review and thematic analysis of the literature. Through an analysis of quantitative, qualitative, and mixed-methods research from…

Assessing implementation of comprehensive treatment programs is a multifaceted process that should extend beyond measuring solely treatment fidelity. The purpose of this article is to describe and demonstrate a thorough process for assessing implementation and receipt of a comprehensive treatment program for students with autism spectrum disorders…

In this study, we examined college and career readiness (CCR) support for students with and without disabilities using data from the National Longitudinal Transition Study 2012. We selected variables relevant to CCR and focused on the interaction of disability, race and ethnicity, and household income across a range of disability categories,…

The effectiveness of Tier 2 interventions may depend on the variability of student skills within an intervention group. We investigated the effect of pretest variability within intervention groups using data from a large-scale study of ROOTS, a Tier 2 kindergarten mathematics intervention. Our research questions were as follows: Does mathematics…