The language and literacy development of young dual language learners: A critical review

The number of children living in the United States who are learning two languages is increasing greatly. However, relatively little research has been conducted on the language and literacy development of dual language learners (DLLs), particularly during the early childhood years. To summarize the extant literature and guide future research, a critical analysis of the literature was conducted. A search of major databases for studies on young typically developing DLLs between 2000–2011 yielded 182 peer-reviewed articles. Findings about DLL children’s developmental trajectories in the various areas of language and literacy are presented. Much of these findings should be considered preliminary, because there were few areas where multiple studies were conducted. Conclusions were reached when sufficient evidence existed in a particular area. First, the research shows that DLLs have two separate language systems early in life. Second, differences in some areas of language development, such as vocabulary, appear to exist among DLLs depending on when they were first exposed to their second language. Third, DLLs’ language and literacy development may differ from that of monolinguals, although DLLs appear to catch up over time. Fourth, little is known about factors that influence DLLs’ development, although the amount of language exposure to and usage of DLLs’ two languages appears to play key roles. Methodological issues are addressed, and directions for future research are discussed

Exploring participation and impairment-based outcomes for Target Word™: A parent-implemented intervention for preschoolers identified as late-to-talk

© The Author(s) 2019. This study explored participation- and impairment-based outcomes for 24 late-to-talk toddlers (M age = 20.46 months, SD = 3.09, 62.5% male) whose parents participated in Target Word™, The Hanen Program® for Parents of Children who are Late Talkers in community clinics across Ontario. Parents completed the MacArthur–Bates Communicative Development Inventories (MBCDI), The Focus on the Outcomes of Communication Under Six (FOCUS-34), and a speech sound checklist: (1) prior to starting the program, (2) at the end of direct intervention, and (3) after a consolidation period. Speech-language pathologists classified children’s communicative function using the Communication Function Classification System (CFCS) at all assessment points and provided FOCUS scores from an initial assessment. No change was recorded in CFCS levels between initial assessment and start of the program, but many children moved to a more advanced level by the end of the program (n = 12) or consolidation period (n = 19). Significant changes in children’s communicative participation skills (FOCUS) were found between initial assessment and the start of the program, and during the 12-week direct intervention (75% made clinically meaningful change). Significant growth in expressive vocabulary and consonant inventory occurred during direct intervention. Correlations between change on impairment- and participation-based measures were not significant. The Target Word program appears to improve communicative function for late-to-talk preschoolers. Children also made gains in communicative participation skills, expressive vocabulary, and consonant inventory during the program, but further research is needed to determine the effectiveness of Target Word in these areas