Research Findings: The aim of this study was to construct and validate "English Picture Vocabulary Test (EPVT)" that aimed to assess the very young learners' (VYLs) receptive and expressive vocabulary knowledge for specific content areas in English as a foreign language (EFL). In this context, EPVT was created in several stages. One of…

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…

Research Findings: This study considered the interplay between infant temperament and maternal caregiving behaviors in relation to early language. A total of 118 mother-infant dyads participated in the study. Mothers rated infant positive affect (PA) and negative affect (NA), and maternal behaviors were coded during a free-play task when infants…

Research Findings: A social validity measure was used to examine 56 bilingual preschool teachers' perceptions and acceptability of an interactive shared book reading vocabulary intervention implemented in English with Spanish-speaking preschool children (N = 334) in a dual language program model. Social validity outcomes indicated that bilingual…

This study examined the concurrent relations of English (EL) and heritage language (HL) proficiency to executive functions (EF) among low-income dual language learners (DLLs) from immigrant families. In a sample of 90 children (age = 38-70 months) from Chinese-speaking Chinese American and Spanish-speaking Mexican American families recruited from…

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: This study examined associations between the expressive vocabulary of classroom peers and children's own vocabulary knowledge using conceptual scoring in a linguistically diverse sample of 4-year-olds who attended universal preschool programs in a metropolitan area. Higher peer conceptually scored expressive vocabulary was…

Research Findings: The present cross-sectional study investigated the question of whether 6 different temperament dimensions (inhibition to novelty, social orientation, motor activity, positive emotionality, negative emotionality, and attention) influenced cognitive and affective theory of mind (ToM) in 168 children (86 three/four-year-olds and 82…

The present study examined the extent to which preschool classroom supports--relational support (RS) and instructional support (IS)--are associated with children's language development and whether these associations vary as a function of children's language ability. The language skills of 360 children within 95 classrooms were assessed using an…

Research Findings: I examined the long-term association between the lexical and acoustic features of maternal utterances during book reading and the language skills of infants and children. Maternal utterances were collected from 22 mother-child dyads in picture book-reading episodes when children were ages 6-12 months and 5 years. Two aspects of…

Research Findings: Grounded in the investment model and informed by the integrative theory of the study of minority children, this study used the Early Childhood Longitudinal Study-Birth Cohort data set, a nationally representative sample of young children, to investigate whether the association between socioeconomic status (family income and…

Research Findings: As policymakers expand access to preschool, the sociodemographic composition of preschool classrooms will become increasingly important. These efforts may create programs that increase the concentration of children from low-income families or, alternatively, foster the creation of socioeconomically diverse preschool classrooms.…

Research Findings: This study examines whether specific teacher instructional practices in early education are associated with children's engagement in prosocial behavior. Teachers' verbal encouragement of prosocial behavior and empathy, emotional warmth, positive behavior management, vocabulary instruction, and encouragement of expressive…

Research Findings: The teacher-child relationship can provide an important support to young children who exhibit developmental risk. This research studied the contribution of children's language skills, temperamentally based attributes (shyness, anger), and gender to closeness and conflict in the teacher-child relationship for 133 preschoolers…

This study examined the relation between language skills, gender, and relational/physical aggression. Language skills of 100 preschoolers were assessed with 3 standardized instruments. Relational/physical aggression was rated by the children's teachers. Results indicated that relational and physical aggression tended to increase as language scores…