Measuring growth in bilingual and monolingual children's english productive vocabulary development: the utility of combining parent and teacher report.

This longitudinal study examined growth in the English productive vocabularies of bilingual and monolingual children between ages 24 and 36 months and explored the utility and validity of supplementing parent reports with teacher reports to improve the estimation of children's vocabulary. Low-income, English-speaking and English/Spanish-speaking parents and Early Head Start and Head Start program teachers completed the MacArthur-Bates Communicative Development Inventory, Words and Sentences for 85 children. Results indicate faster growth rates for monolingual than for bilingual children and larger vocabularies for bilingual children who spoke mostly English than mostly Spanish at home. Parent-teacher composite reports, like parent reports, significantly related to children's directly assessed productive vocabulary at ages 30 and 36 months, but parent reports fit the model better. Implications for vocabulary assessment are discussed.

It takes time: Impacts of Early Head Start that lead to reductions in maternal depression two years later.

The Early Head Start Research and Evaluation Project, a random-assignment evaluation, found a broad pattern of positive impacts for children and families. However, there were no program impacts on depression or use of mental health services by the time children reached age 3, at the end of the Early Head Start (EHS) program. This paper presents recent findings from the follow-up study in the spring prior to the children entering kindergarten, when a positive program impact emerged for reducing maternal depression. Results show that earlier program impacts on children and parents (when children were 2 and 3 years of age) mediated, or led to, the delayed impact on maternal depression. The combination of the most promising child factors accounted for over 57% of the later impact on depression, while the most promising parent factors accounted for over 35% of the later impact on depression. Implications for EHS programs are discussed.

Mother-child bookreading in low-income families: correlates and outcomes during the first three years of life.

About half of 2,581 low-income mothers reported reading daily to their children. At 14 months, the odds of reading daily increased by the child being firstborn or female. At 24 and 36 months, these odds increased by maternal verbal ability or education and by the child being firstborn or of Early Head Start status. White mothers read more than did Hispanic or African American mothers. For English-speaking children, concurrent reading was associated with vocabulary and comprehension at 14 months, and with vocabulary and cognitive development at 24 months. A pattern of daily reading over the 3 data points for English-speaking children and daily reading at any 1 data point for Spanish-speaking children predicted children's language and cognition at 36 months. Path analyses suggest reciprocal and snowballing relations between maternal bookreading and children's vocabulary.

Maternal correlates of growth in toddler vocabulary production in low-income families.

This study investigated predictors of growth in toddlers' vocabulary production between the ages of 1 and 3 years by analyzing mother-child communication in 108 low-income families. Individual growth modeling was used to describe patterns of growth in children's observed vocabulary production and predictors of initial status and between-person change. Results indicate large variation in growth across children. Observed variation was positively related to diversity of maternal lexical input and maternal language and literacy skills, and negatively related to maternal depression. Maternal talkativeness was not related to growth in children's vocabulary production in this sample. Implications of the examination of longitudinal data from this relatively large sample of low-income families are discussed.

Measuring productive vocabulary of toddlers in low-income families: concurrent and predictive validity of three sources of data.

This study examined parental report as a source of information about toddlers' productive vocabulary in 105 low-income families living in either urban or rural communities. Parental report using the MacArthur Communicative Development Inventory - Short Form (CDI) at child age 2 ; 0 was compared to concurrent spontaneous speech measures and standardized language assessments, and the utility of each source of data for predicting receptive vocabulary at age 3 ; 0 (Peabody Picture Vocabulary Test) was evaluated. Relations between language measures of interest and background variables such as maternal age, education, and race/ethnicity were also considered. Results showed that for the sample as a whole, parental report was moderately associated with other language measures at age 2 ; 0 and accounted for unique variance in PPVT at age 3 ; 0, controlling for child language skills derived from a standard cognitive assessment. However, predictive validity differed by community, being stronger in the rural than in the urban community. Implications of significant differences in background characteristics of mothers in the two sites are discussed.