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The purpose of this cluster randomized group study was to investigate the effect of multitiered, dual-language instruction on children's oral language skills, including vocabulary, narrative retell, receptive and expressive language, and listening comprehension. The participants were 3- to 5-year-old children (n = 81) who were learning English and whose home language was Spanish. Across the school year, classroom teachers in the treatment group delivered large-group lessons in English to the whole class twice per week. For a Tier 2 intervention, the teachers delivered small-group lessons 4 days a week, alternating the language of intervention daily (first Spanish, then English). Group posttest differences were statistically significant, with moderate to large effect sizes favoring the treatment group on all the English proximal measures and on three of the four Spanish proximal measures. Treatment group advantages were observed on Spanish and English norm-referenced standardized measures of language (except vocabulary) and a distal measure of language comprehension. [For the corresponding grantee submission, see ED603565.]

The purpose of this cluster randomized group study was to investigate the effect of multitiered, dual-language instruction on children's oral language skills, including vocabulary, narrative retell, receptive and expressive language, and listening comprehension. The participants were 3- to 5-year-old children (n = 81) who were learning English and whose home language was Spanish. Across the school year, classroom teachers in the treatment group delivered large-group lessons in English to the whole class twice per week. For a Tier 2 intervention, the teachers delivered small-group lessons 4 days a week, alternating the language of intervention daily (first Spanish, then English). Group posttest differences were statistically significant, with moderate to large effect sizes favoring the treatment group on all the English proximal measures and on three of the four Spanish proximal measures. Treatment group advantages were observed on Spanish and English norm-referenced standardized measures of language (except vocabulary) and a distal measure of language comprehension.

Standards of academic performance place a high demand on students' English language. To help Spanish-speaking preschoolers who are developing English as a second language meet these demands, researchers recommend strengthening their first language to facilitate development of their second language. Head Start teachers and research assistants delivered 12 Spanish and 12 English language lessons to eight preschoolers in small groups. Lessons targeted storytelling and vocabulary and occurred 4 days a week for 20 min. A multiple-baseline experimental design across groups was used to examine the effect of the Spanish-English narrative intervention on children's retelling skills and a pretest posttest design without a control group documented children's acquisition of the target words. Results indicated that children made gains in English retelling while maintaining their already high Spanish retelling skills. Improvements in vocabulary were observed in English but not in Spanish.

Despite research demonstrating the importance of language comprehension to later reading abilities, curriculum-based measures to assess language comprehension abilities in preschoolers remain lacking. The Assessment of Story Comprehension (ASC) features brief, child-relevant stories and a series of literal and inferential questions with a focus on causal and predictive inference skills surrounding the main story grammar components and a novel vocabulary word. Following an overview of the iterative development process and pilot studies, this article presents preliminary evidence of the fidelity of administration, reliability of scoring, alternate form reliability, and validity of the ASC. In all, 237 preschoolers, ages 3 to 5 years old, participated in this study. Fidelity of administration and scoring reliability averaged over 90%. Concurrent validity with two established language measures revealed correlations ranging from 0.67 to 0.81. Test-retest reliability and internal consistency also indicated high levels of reliability for this new tool; however, alternate form reliability results suggest further work is needed. Preliminary results indicate that the ASC holds promise as a viable curriculum-based measure that early childhood educators can use for monitoring preschoolers' progress in language comprehension.

Purpose: The purpose of the present study was to evaluate the efficacy of a phonological awareness (PA) intervention, designed for Tier 2 instruction in a Response to Intervention (RTI) model, delivered to small groups of preschoolers. Method: A multiple-baseline design across participants was used to evaluate the efficacy of the intervention on low-income preschool children's PA skills. A trained interventionist delivered small group sessions 3 to 4 days a week and ensured children received frequent opportunities to respond and contingent feedback. Participants received 28 to 36 lessons that lasted about 10 min each and focused on PA and alphabet knowledge. Initiation of intervention was staggered across 3 triads, and 7 children completed the study. Results: The intervention produced consistent gains on weekly progress monitoring assessments of the primary outcome measure for first sound identification (First Sound Fluency). Most children also demonstrated gains on other measures of PA and alphabet knowledge. Conclusions: Results provide support for the application of a small group intervention consistent with an RTI framework and document the potential benefits of the intervention to learners who need early literacy instruction beyond the core curriculum.

This early efficacy study examined the effects of an automated storybook intervention designed to promote school readiness among at-risk prekindergarten children. Story Friends is a small-group intervention in which vocabulary and question-answering lessons are embedded in a series of storybooks.A randomized group design with an embedded single-case experimental design was used to examine treatment effects. Eighteen children from public prekindergarten programs serving families with low income were randomly assigned to the Story Friends treatment or a business-as-usual comparison. Participants in both groups completed measures of vocabulary and comprehension approximately monthly. Participants in the treatment group completed measures of instructional content for each book as part of the embedded single-case experimental design. Story Friends participants had significantly higher scores on measures of vocabulary than the comparison group and effect sizes were large, whereas more modest effects were shown for comprehension measures. Observations of treatment fidelity indicate that this intervention has the potential to be implemented with high fidelity in preschool classrooms. Results show a feasible means of teaching pre-K children challenging vocabulary that has the potential to facilitate later literacy development.