The research literature well establishes that adverse conditions, such as poverty, can affect children's cognitive development and academic achievement. Educators are challenged to translate these understandings into instructional practices grounded in research that best meet the needs of students, especially students living in poverty who are at…

Purpose: Reading and writing are foundational skills that provide access to educational, vocational, and social experiences. However, while the gap widens between the literacy skills of individuals with intellectual disability (ID) and those with typical development as they grow into adolescence, little is known about meeting the comprehensive…

A tenet of the Multi-Tiered System of Supports (MTSS) is that even evidence-based interventions will not be effective with all children. We examined preschool children's response to a supplemental literacy intervention ("Story Friends") in two classrooms. Children with weak vocabulary skills were identified and received the intervention.…

Childhood socioeconomic status (SES) is associated with persistent academic achievement gaps, which necessitates evidence-based, scalable interventions to improve children's outcomes. The present study reports results from a replication and extension of a family-based training program previously found to improve cognitive development in lower-SES…

Personal narrative ability is crucial for social-emotional well-being and classroom participation. This study investigated the ability of 10 school-age participants with Down syndrome to share past personal experiences with their teacher aides in their school environment. To participate, children were required to speak in short sentences and be…

This study is a randomized control trial of full- versus half-day prekindergarten (pre-K) in a school district near Denver, Colorado. Four-year-old children were randomly assigned an offer of half-day (4 days/week) or full-day (5 days/week) pre-K that increased class time by 600 hours. The full-day pre-K offer produced substantial, positive…

There are unique challenges to estimating causal effects of preschool for students with special needs that have not received attention in the literature. We revisit the Head Start Impact Study (HSIS) to illustrate that when and how special needs is defined has implications for the internal validity of and interpretation of special needs subgroup…

Classification changes are common in special education. Using the first four years of the Pre-elementary Education Longitudinal Study data set (N = 3000), we investigated national trends in classification changes among young children with disabilities, the relationship between classification changes and children's demographic information, and the…

The application of Response to Intervention (RtI) to early childhood settings presents many opportunities and challenges; however, it remains unclear how best to implement this framework in settings in which children at risk of academic difficulty are overrepresented, like Head Start. One of the first steps in implementing any RtI process is the…

Theory and empirical work suggest inclusion preschool improves the school readiness of young children with special needs, but only 2 studies of the model have used rigorous designs that could identify causality. The present study examined the impacts of the Boston Public prekindergarten program-which combined proven language, literacy, and…

Research in special education has yielded beneficial outcomes for students with disabilities as well as typical achieving students. The authors provide examples of the valuable knowledge special education research has generated, including the elements of response to intervention (e.g., screening and progress monitoring), instructional practices…

Little analytical scrutiny has been devoted to teacher accommodation of academic language at the early childhood level, despite being a critical school-level factor to consider when addressing at-risk learners' academic needs. The present study investigates how fifteen Head Start teachers support three components of academic language during…

Head Start is a national program that aims to promote school readiness by enhancing the social and cognitive development of children through the provision of educational, health, nutritional, social, and other services to enrolled children and families. The program places special emphasis on helping preschoolers develop the reading, language,…

Determining the effectiveness of many special education interventions is most difficult because of the practical and ethical limitations associated with assigning participants to a control or non-treated group. Using Longitudinal Study of Australian Children data, this article utilised eight different propensity score analysis methods to determine…

Response to Intervention (RTI) or Multi-Tiered Systems of Support (MTSS) is beginning to be implemented in preschool programs to improve outcomes and to reduce the need for special education services. The proportions of children in programs identified as struggling learners through universal screening have important implications for the…