Vocabulary and Phonological Abilities Affect Dual Language Learners' Consonant Production Accuracy Within and Across Languages: A Large-Scale Study of 3- to 6-Year-Old Spanish-English Dual Language Learners.

Purpose This study examined factors of language ability that predict consonant production accuracy in young Spanish-English dual language learners (DLLs). Method Participants were 695 Latino DLLs, ages 3;0-6;5 (years;months). Single-word productions were elicited using the Bilingual Phonological Assessment (Miccio & Hammer, 2006). Children's consonant productions were assessed using Percentage of Consonants Correct-Revised (PCC-R; Shriberg et al., 1997a). Vocabulary abilities were assessed using the Woodcock-Muñoz Language Survey-Revised (Woodcock et al., 2005). Multiple linear regression analyses were used to determine the effects of vocabulary abilities and cross-language consonant production abilities on children's consonant production accuracy in each language. Results Large amounts of the variance in PCC-R scores for English (R 2 = .65) and Spanish (R 2 = .43) were predicted by children's age, vocabulary scores within the same language, and PCC-R scores across languages. Conclusion Spanish-English DLLs' consonant production abilities in both languages improve with age between 3;0 and 6;5. DLLs' accuracy in each language is also affected by vocabulary abilities within the same language and by their consonant production abilities in the other language. In particular, children's consonant production abilities in each language were highly predictive of their consonant production abilities in the other language, which suggests that shared phonological skills support their development across languages.

Effects of Home Language, Oral Language Skills, and Cross-Linguistic Phonological Abilities on Whole-Word Proximity in Spanish-English-Speaking Children.

Purpose This study examined language use and language ability factors that predict phonological whole-word proximity in young Spanish-English-speaking children. Method Participants were 199 Latino children aged 3;0-6;6 (years;months) and their mothers. Children's speech sound production in English and Spanish was assessed using the Bilingual Phonological Assessment ( Miccio & Hammer, 2006 ). Vocabulary and story retell abilities were assessed using the Woodcock-Muñoz Language Survey-Revised ( Woodcock, Muñoz-Sandoval, Ruef, & Alvarado, 2005 ), and information regarding the children's exposure to and use of English and Spanish was collected by means of a parent survey. Hierarchical regression analyses were used to determine the degree to which exposure to and use of each language in the home, oral language abilities, and phonological proficiency as measured by the proportion of whole-word proximity (PWP; Ingram, 2002 ) in the other language were able to predict the PWP scores in English and Spanish. Results A large portion of the variance in English and Spanish PWP scores ( R 2 = .66 and .51, respectively) was predicted by the language children use when communicating with their mothers, children's vocabulary scores, and children's PWP scores in the other language. Conclusion Language use, vocabulary, and phonological whole-word proximity in the other language are significant factors in predicting bilingual children's whole-word proximity in English and Spanish. Children's phonological abilities in one language are highly predictive of those same abilities in the other, suggesting underlying shared phonological skills across languages.

Analysis of Bilingual Children's Performance on the English and Spanish Versions of the Woodcock-Muñoz Language Survey-R (WMLS-R).

The purpose of this study was to investigate the way in which items on the Woodcock-Muñoz Language Survey Revised (WMLS-R) Spanish and English versions function for bilingual children from different ethnic subgroups who speak different dialects of Spanish. Using data from a sample of 324 bilingual Hispanic families and their children living on the United States mainland, differential item functioning (DIF) was conducted to determine if test items in English and Spanish functioned differently for Mexican, Cuban, and Puerto Rican bilingual children. Data on child and parent language characteristics and children's scores on Picture Vocabulary and Story Recall subtests in English and Spanish were collected. DIF was not detected for items on the Spanish subtests. Results revealed that some items on English subtests displayed statistically and practically significant DIF. The findings indicate that there are differences in the difficulty level of WMLS-R English-form test items depending on the examinees' ethnic subgroup membership. This outcome suggests that test developers need to be mindful of potential differences in performance based on ethnic subgroup and dialect when developing standardized language assessments that may be administered to bilingual students.

Predicting Spanish-English bilingual children's language abilities.

PURPOSE: In this study, the authors investigated factors that affect bilingual children's vocabulary and story recall abilities in their 2 languages. METHOD: Participants included 191 Latino families and their children, who averaged 59 months of age. Data on parental characteristics and children's exposure to and usage of Spanish and English were collected. The authors assessed children's Spanish and English vocabulary and story recall abilities using subtests of the Woodcock-Muñoz Language Survey-Revised ( Woodcock, Muñoz-Sandoval, Ruef, & Alvarado, 2005). RESULTS: Sizeable percentages of variation in children's English (R2 = .61) and Spanish (R2 = .55) vocabulary scores were explained by children's exposure to, and usage of, each language and maternal characteristics. Similarly, variations in children's story recall scores in English (R2 = .38) and Spanish (R2 = .19) were also explained by the factors considered in this investigation. However, the authors found that different sets of factors in each category affected children's vocabulary and story recall abilities in each language. CONCLUSIONS: Children's exposure to and usage of their two languages as well as maternal characteristics play significant roles in bilingual individuals' language development. The results highlight the importance of gathering detailed sociolinguistic information about bilingual children when these children are involved in research and when they enter the educational system.

Predicting bilingual Spanish-English children's phonological awareness abilities from their preschool English and Spanish oral language.

This longitudinal study investigated the relationship between oral language abilities and phonological awareness in 85 typically developing, Spanish-English preschool children (average age in preschool was 3 years, 9 months). Receptive language skills in Spanish and English were assessed in the autumn and spring during the children's 2 years in Head Start for a total of four measurement occasions. Phonological awareness was assessed during the spring of children's kindergarten year. Results indicated that English receptive vocabulary at the end of preschool predicted English phonological awareness abilities in kindergarten, whereas Spanish vocabulary was observed to have a negative predictive relationship with children's English phonological awareness abilities. However, after controlling for English vocabulary, Spanish vocabulary no longer had an effect on English phonological awareness. Broad receptive language abilities in English and Spanish did not predict later English phonological awareness skills.