Early developmental skills, such as attention, language, and fine motor abilities, can be assessed in preschool to predict later achievement, particularly in reading. Connecticut Documentation & Observation for Teaching System (CT DOTS) is a holistic measure used to track the skill development of preschoolers who attend preschool programs…

This dissertation asks what young children do with style at a time when their social and linguistic worlds begin to expand beyond the home, into the peer group. Grounded in a yearlong ethnography of a preschool classroom in the San Francisco Bay Area, I show how play moved gradually from indoors to outdoors as children got older. This shift…

Over half of US children are enrolled in preschools, where the quantity and quality of language input from teachers are likely to affect children's language development. Leveraging repeated objective measurements, we examined the rate per minute and phonemic diversity of child and teacher speech-related vocalizations in preschool classrooms and…

Usage-based theories of language development underscore the importance of children using language to learn language. Few investigations have applied usage-based theories to dual language learners (DLLs), who comprise a growing share of children attending early education programs in the U.S. Three studies were carried out to investigate the role of…

English is undoubtedly an important language for educational and socio-economic mobility in numerous countries including Malaysia. Regardless of its importance, studies to document English language acquisition among Malaysian children acquiring English in the local context remain scarce. This normative data is imperative for syllabus-designers,…

The purpose of this exploratory study was to examine the longitudinal, bidirectional relations between receptive and expressive Spanish and English language and internalizing and externalizing behavior problems in a sample of 97 preschool children from Spanish-speaking, homes who were enrolled in a U.S. Head Start program. Eight cross-lagged path…

This study examined the effects of older siblings' L1/L2 use on the vocabulary and fast mapping skills in preschool-age children who learn Cantonese (L1) as a home language and start to learn English (L2) in preschool settings. Two groups of bilingual children participated in this study: (1) children whose older siblings used mostly L1 at home…

Research Findings: A substantial body of research has demonstrated social and academic benefits of sociodramatic play (SDP) for young children. However, substantially less research has explored the factors related to increased amounts of SDP occurring during free play, an activity time that comprises the greatest portion of the daily schedule in…

Person-oriented approaches can be used to identify how teachers may draw upon a combination of strategies when interacting with individual children. For nearly 1 third of children under the age of 8 who come from a household where a language other than English is spoken, it is crucial to identify patterns of teachers' use of discourse strategies…

This study explores how preschool educators could assess dual language learners' (DLLs) English language abilities using formative instruments in school settings. It specifically examines (1) DLLs' receptive and expressive language proficiencies measured using the instruments and (2) educators' perceived usefulness of them for informing…

Research Findings: We examined the amount of preschool lead/assistant teachers' English/Spanish language use and relations between quality of teacher-child interactions, and Dual Language Learners' (DLLs) English/Spanish bilingual vocabulary in 31 English-medium Head Start classrooms. Measures in this study included (a) children's conceptual…

Research Findings: Mental state verbs (MSV), a component of literate and academic language, may facilitate vocabulary growth, as they relate to metacognitive and metalinguistic awareness as well as decontextualized talk, all of which have been associated with vocabulary growth. In this study, we examined teacher MSV use in group content…

Research Findings: Children from immigrant families are more likely than children of native parents to start school with fewer of the academic skills that are important for long-term success, although evidence on behavioral skills is mixed. Center-based early education and care (EEC) programs, which have been linked to improvements in academic…

This study examined single-word code-mixing produced by bilingual preschoolers in order to better understand lexical choice patterns in each language. Analysis included item-level code-mixed responses of 606 five-year-old children. Per parent report, children were separated by language dominance based on language exposure and use. Children were…

This study examines growth rates in vocabulary over an academic year for 150 Latino English language learners. In October, February, and June of kindergarten, participants completed standardized measures of receptive and expressive vocabulary. Before the second and third assessments, a third of the children watched Arthur three times a week during…