A total of 29 low-income, prekindergarten children, attending a summer school program, participated in a six-week shared book-reading (SBR) intervention. Children were randomly assigned to one of four conditions that varied in the extent to which teachers embedded an explicit emphasis on print (code-focused interactions), vocabulary…

Reading buddies programs, which pair older and younger students to read books together on a regular basis, are common in many U.S. elementary schools. Yet, the research base on these programs is limited. Therefore, we conducted a quasiexperimental study of a reading buddies program targeting vocabulary and comprehension. The program we studied…

We evaluated two experimenter-delivered, small-group word reading programs among at-risk poor readers in Grade 1 classes of regular elementary schools using a two-arm, dual-site-matched control trial intervention. At-risk poor word readers (n = 201) were allocated to either (a) Direct Mapping and Set-for-Variability (DMSfV) or (b) Current or…

This study examined the efficacy of using different types of mobile media apps to increase the receptive and expressive vocabulary development of 3-, 4-, and 5-year-old preschool children living in economically disadvantaged communities. Children and teachers in four Head Start classrooms participated in the quasi-experimental study, which…

Dialogic reading is an evidence-based practice for preschool children who are typically developing or at-risk; yet there is limited research to evaluate if it has similar positive effects on the language and preliteracy skills of children with disabilities. This quasi-experimental study examined the effects of dialogic reading, with the…

Many English language learners (ELLs) and children living in poverty begin school with substantially less English vocabulary knowledge than their monolingual, economically advantaged peers. Without effective intervention, these vocabulary gaps are likely to contribute to long-term reading failure. This quasi-experimental study examined the extent…

The purpose of this study was to examine the effects of adapted peer tutoring (APT) on social interactions and early language and literacy skills of pre-school-age children who were English language learners (ELLs). APT was the treatment for this study. Quasi-experimental group comparison design was applied. Two inclusive pre-school classrooms…

The 3-year Pennsylvania Dyslexia Screening and Early Literacy Intervention Pilot Program (Pilot) began in 2015-16 (Year 1) with the kindergarten class of 2015-16 (Cohort 1). In 2016-17 (Year 2), the Pilot was implemented with Cohort 1 students, now in first grade, and a second cohort of kindergarteners (Cohort 2). A third cohort will be added in…

The purpose of this study was to compare the results of a regression discontinuity design (RDD) with those of an experimental design of a tiered vocabulary intervention for children at risk for reading disability to determine RDD's feasibility as a research methodology for this type of study. Researchers reanalyzed an archival dataset of a…

Most vocabulary growth during the school-age years occurs incidentally. However, little is understood about the influence of language skills on word knowledge growth during reading. Using a pretest-posttest quasi-experimental design, we examined incidental word learning through reading, considering the presence/absence of supportive context and…

This study aimed to provide evidence regarding the efficacy of an early literacy preparation program, "PreLit", designed to improve the skills of young Australian children. Participants comprised 240 children in eight schools attending their first year of schooling. Children in the four experimental group schools received instruction in…

Across multiple schools and sites, the impact of grade-at-intervention was evaluated for children at risk or meeting criteria for reading disabilities. A multiple-component reading intervention with demonstrated efficacy was offered to small groups of children in 1st, 2nd, or 3rd grade. In a quasi-experimental design, 172 children received the…

We examined data from an 18-week kindergarten vocabulary intervention study to determine whether treatment outcomes had differential effects that favored English language learners (ELLs) or English-only learners (EOLs) and whether the relationship between initial English general receptive vocabulary knowledge and response to vocabulary…

The 1998 reauthorization of Head Start called for a national evaluation of the Head Start program. The goal of Head Start is to improve the school readiness skills of low-income children. Yet characteristics of Head Start programs, such as their quality and the amount of time children spend in them may influence their effectiveness at achieving…

This study seeks to answer the following question: Are impacts on Head Start classroom quality associated with impacts of Head Start on children's learning and development? This study employs a variety of descriptive and quasi-experimental methods to explore the role of classroom quality as a mediator or mechanism of Head Start impacts. This…