The role of children's receptive vocabulary knowledge in word and nonword reading (decoding) in an orthographically transparent language is debated. Moreover, we have little understanding of how the role of vocabulary might differ between monolingual children and bilingual children from immigrant families (or language minority bilingual children…

Background: Teaching vocabulary may be an effective way to address poor reading comprehension. However, it is unclear how many words or word families a school aged child with poor vocabulary would need to learn to meaningfully impact comprehension. This study provides estimates of vocabulary size for children with differing vocabulary achievement…

We investigated whether individual differences in overall receptive vocabulary knowledge measured at the beginning of the year moderated the effects of a kindergarten vocabulary intervention that supplemented classroom vocabulary instruction. We also examined whether moderation would offset the benefits of providing Tier-2 vocabulary intervention…

This study examines the English vocabulary development of 43 very young child English as a foreign language (FL) learners (age 3.2-6.2) in China. They were tested twice for vocabulary breadth (reception and production) and semantic depth (paradigmatic and syntagmatic vocabulary knowledge). The development of the English vocabulary knowledge…

The Adult Basic Education (ABE) population consists of a wide range of abilities with needs that may be unique to this set of learners. The purpose of this study was to better understand the relative contributions of phonological decoding and morphological awareness to spelling, vocabulary, and comprehension across a sample of ABE students. In…

Models of irregular word reading that take into account both child- and word-level predictors have not been evaluated in typically developing children and children with reading difficulty (RD). The purpose of the present study was to model individual differences in irregular word reading ability among 5th grade children (N = 170), oversampled for…

This research evaluated possible sources of individual differences in early explicit, smaller segment phonological awareness. In particular, the unique contributions of oral vocabulary and alphabetic knowledge to phonemic awareness acquisition were examined across the first year of school. A total of 57 participants were tested in kindergarten…

Evidence shows that the Matthew effect is a persistent problem among early education interventions. The current study examined the degree to which the "ExCELL" ("Ex"ceptional "C"oaching for "E"arly "L"anguage and "L"iteracy) language and literacy professional development intervention for…

The specific purpose of the research discussed was to develop an instrument which would permit assessment of individual and developmental differences in the acquisition of abilities to understand and utilize emotional and psychological facets of interpersonal behavior. Emotional insight was assessed in 81 male and female children between the ages…