This mixed-methods study explored joining use of increasing-complex text with sound instructional practices on English Learners' (ELs) academic language and conceptual knowledge. Findings showed one-week postintervention, ELs achieved significant academic vocabulary gains such that there were no differences between ELs and general education (GE)…

While little is known about why children make speech errors, it has been hypothesized that cognitive-linguistic factors may underlie phonological speech sound disorders. This study compared the phonological short-term and phonological working memory abilities (using immediate memory tasks) and receptive vocabulary size of 14 monolingual preschool…

Addressing a critical need for effective vocabulary practices in early childhood classrooms, we conducted a design experiment to achieve three goals: (1) developing a comprehensive model for early childhood vocabulary instruction, (2) examining the effectiveness of this model, and (3) discerning the contextual conditions that hinder or facilitate…

This article examines associations between observed quality in preschool center classrooms for approximately 6,250 three- to five-year-olds and their school readiness skills at kindergarten entry. Secondary analyses were conducted using data from four large-scale studies to estimate the effects of preschool center quality and interactions between…

This systematic review of the literature synthesizes research from a number of disciplines and provides a succinct distillation of the methods and measures used to study the impact of creative drama on the language development of young children. An analysis of the merits and limitations of the reviewed studies reveals a number of methodological…