Search

Purpose: Letter knowledge is a key aspect of children's language development, yet relatively little research has aimed to understand the nature of lowercase letter knowledge. We considered 4 hypotheses about children's lowercase letter knowledge simultaneously--uppercase familiarity, uppercase-lowercase similarity, own-name advantage, and frequency in printed English--as well as 3 interactions. Method: Participants were 461 children ranging in age from 3 to 5 years, all of whom attended public preschool programs serving primarily children from low-income homes, who completed a letter naming task. Results: Uppercase familiarity was the strongest predictor of children's lowercase alphabet knowledge; children were more than 16 times more likely to know a lowercase letter if they knew the corresponding uppercase letter. Uppercase-lowercase similarity and frequency in printed English also predicted children's lowercase letter knowledge, as did the interaction between uppercase familiarity and own-name advantage and the interaction between uppercase familiarity and uppercase-lowercase similarity. Conclusions: Findings suggest that transference from uppercase letter knowledge may be a primary mechanism for lowercase letter knowledge and that young children's knowledge of the lowercase alphabet letters is multiply determined. KEY WORDS: alphabet, preschool, letter knowledge, Young children's language development includes acquiring knowledge about oral and written language systems (Nation & Snowling, 2004). Although the developmental fields have a long history of generating and testing theories [...]

This study tested the hypotheses that (a) persistent language difficulties during childhood would predict lower school readiness and (b) language difficulties present just prior to school entry would predict lower school readiness beyond any effects of persistence. The study involved examining indicators of school readiness collected at kindergarten for children exhibiting various histories of language ability based on language measures collected at 15, 24, 36, and 54 months by the National Institute of Child Health and Human Development's Early Child Care Research Network. Children (N = 1,064) were classified according to whether they exhibited expressive or receptive language difficulties at each time point measured. The relation between persistence and timing of these difficulties to each kindergarten outcome was studied through a common factor approach for categorical outcomes. Persistence of language difficulties was not generally related to kindergarten outcomes. However, a robust effect was found for timing of language difficulties: Children who exhibited language difficulties at 54 months exhibited significantly depressed performance on measures of school readiness. Findings are discussed in terms of current policy and research concerning kindergarten readiness for children exhibiting risk. Keywords: kindergarten readiness, school adjustment, language difficulties, language acquisition

This research used the National Institute of Child Health and Human Development Study of Early Child Care database of 1,364 children to identify children at 3 years of age who could generally be characterized as exhibiting specific language impairment. Seventy-three identified children were classified into 2 groups on the basis of standardized assessment of language skills at 4.5 years: children whose language impairment had resolved (n = 33) versus those whose language impairment persisted (n = 40). A logistic regression model using measures of maternal sensitivity, maternal depression, child externalizing behaviors, child health history, family income-to-needs ratio, and quality of home environment was used to predict group membership. Maternal sensitivity and maternal depression contributed significantly to the prediction model for group membership. Results are discussed in terms of theoretical and clinical implications. [ABSTRACT FROM AUTHOR]

A difficulty for developmental researchers is disambiguating children's general maturation from the influence of schooling. In this study, we use a natural experiment to examine the influence of pre-kindergarten and kindergarten schooling experiences on the development of literacy and mathematics. Children (n = 60) whose birthdates fell within two months of the state-determined cut-off date for pre-kindergarten and kindergarten entry were administered four subtests of the Woodcock-Johnson Tests of Achievement III in the fall and spring of the school year. Using hierarchical linear modeling coupled with propensity score matching, children who were starting kindergarten, and who had prior experience in pre-kindergarten, had higher scores on measures of phonological awareness, early reading, and mathematics skills than did children who had not attended pre-kindergarten previously, even though they were essentially the same age. Fall vocabulary scores did not differ in relation to whether children had pre-kindergarten experience. In addition, although children who attended kindergarten as well as those who attended pre-kindergarten exhibited growth on all measures during the school year, children who attended kindergarten demonstrated greater gains in early reading and vocabulary during the school year. These findings highlight the potential of early schooling processes to facilitate children's intellectual growth.