There is at present no clear consensus as to the nature of the relations between oral vocabulary and specific literacy skills. The present study distinguished between vocabulary breadth and depth of vocabulary knowledge to better explain the role of oral vocabulary in various reading skills. A sample of 60 typically developing Grade 4 students was assessed on measures of receptive and expressive vocabulary breadth, depth of vocabulary knowledge, decoding, visual word recognition, and reading comprehension. Concurrent analyses revealed that each distinct reading skill was related to the vocabulary measures in a unique manner. Receptive vocabulary breadth was the only oral vocabulary variable that predicted decoding performance after controlling for age and nonverbal intelligence. In contrast, expressive vocabulary breadth predicted visual word recognition, whereas depth of vocabulary knowledge predicted reading comprehension. The results are discussed in terms of interrelations between phonological and semantic factors in the acquisition of distinct reading skills.

The present study sought to clarify the relations amongst serial decoding, irregular word recognition, listening comprehension, facets of oral vocabulary and reading comprehension in two cohorts of children differing in reading level. In the process, the components of the simple view of reading were evaluated. Students in grades 1 (n = 67) and 6 (n = 56) were assessed on measures of phonological awareness, decoding, irregular word recognition, listening comprehension, oral vocabulary, and reading comprehension. Even when all other measures were controlled, vocabulary was found to explain reading comprehension in grade 6 but not grade 1. Vocabulary also predicted decoding in grade 6 and irregular word recognition in both grades. These results are interpreted as supporting a not-so-simple view of the constructs underlying reading comprehension that acknowledges complex connections between print skills and oral language.

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This intervention study tested whether invented spelling plays a causal role in learning to read. Three groups of kindergarten children (mean age = 5 years 7 months) participated in a 4-week intervention. Children in the invented-spelling group spelled words as best they could and received developmentally appropriate feedback. Children in the 2 comparison groups were trained in phonological awareness or drew pictures. Invented-spelling training benefited phonological and orthographic awareness and reading of words used in the intervention. Importantly, the invented-spelling group learned to read more words in a learn-to-read task than the other groups. The finding are in accord with the view that invented spelling coupled with feedback encourages an analytical approach and facilitates the integration of phonological and orthographic knowledge, hence facilitating the acquisition of reading.

Children's early spelling attempts (invented spellings) and underlying component skills were evaluated in a sample (N = 115) of 5-year-old children. Letter-sound knowledge and phoneme awareness were shown to be important predictors of invented spelling performance in this age group. The results also showed associations between invented spelling and measures of orthographic awareness and morphological processing. The findings support the view that invented spelling is a developmentally complex and important early literacy skill that involves phonemic awareness, letter sound knowledge, and other oral language skills and orthographic knowledge.Young children often attempt to represent words in print before receiving any formal instruction. Detailed descriptions of children's explorations at representing spoken language in print show that children refine their productions over time moving from scribbles to a gradual representation of the phonological structure of words, albeit in a nonconventional manner (Chomsky, 1971;Read, 1971). These early preconventional spellings are referred to as invented spelling. According to one view, invented spelling represents a very early aspect of literacy acquisition, one that appears before children are established readers (Gentry & Gillet, 1993). Invented spelling may thus offer a window into the developing cognitive and linguistic skills involved in early literacy skill acquisition. Although qualitative research has offered detailed descriptions of invented spelling, the component processes that account for the sophistication in children's early spelling attempts have SCIENTIFIC STUDIES OF READING, 12(2),