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Computer-Assisted Bilingual Vocabulary Instruction improved Spanish vocabulary in Spanish-speaking preschoolers compared to English-only instructionA New App Helps Kids Speak Two Languages

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Key Takeaway
Consider CABVI as a preliminary resource for supporting vocabulary development in dual language learners.

This randomized controlled trial assessed the efficacy of a Computer-Assisted Bilingual Vocabulary Instruction (CABVI) program among 21 Spanish-speaking preschoolers, specifically dual language learners. Participants were assigned to receive bilingual CABVI, English-only CABVI, or business-as-usual instruction. The study measured vocabulary gains across receptive, naming, and definition tasks, alongside implicit vocabulary and the impact of the language of instruction, with assessments conducted at a six-week follow-up.

results indicated that the bilingual CABVI group achieved significantly improved outcomes in direct Spanish vocabulary compared to both the English-only and business-as-usual groups. Conversely, both the bilingual and English-only intervention groups demonstrated comparable improvements in English vocabulary. Gains in implicit vocabulary were similar across the bilingual and English-only groups, and vocabulary gains in both languages were maintained at the six-week follow-up point.

No adverse events, serious adverse events, discontinuations, or specific tolerability issues were reported in this study. However, the evidence is limited by its preliminary nature and small sample size of 21 participants. Consequently, these results should be interpreted as early indicators of potential benefit rather than definitive proof of long-term efficacy.

The CABVI program offers a structured framework to support vocabulary development for dual language learners. Clinicians may consider this resource when managing patients who are monolingual English speakers or when seeking structured interventions to support vocabulary acquisition in this population.

The Struggle for Young Learners

Imagine a preschooler who speaks Spanish at home but is learning English at school. These children are called dual language learners. They face a unique challenge every day. They must switch between two worlds of communication.

Many schools focus only on English. This can make children feel confused or left behind. They might understand the teacher but struggle to speak up. This gap can hurt their confidence and their grades.

Language is the key to learning everything else. If a child cannot name objects or understand instructions, they miss out on lessons. Current tools often ignore the child's home language. This approach assumes English is the only path forward. But research shows that ignoring Spanish slows down learning.

The Surprising Shift

Old methods usually taught only English. Teachers would try to translate words on the fly. This was hard work and often inconsistent. But here's the twist: a new computer program changes the game. It uses technology to teach both languages at once.

What Scientists Didn't Expect

The program uses audio prompts and interactive stories. It acts like a patient tutor that never gets tired. Think of it as a smart coach for your brain. It shows you a picture of an apple and says "manzana" in Spanish and "apple" in English.

The program focuses on 37 specific words. It repeats them in fun ways. This helps the brain make strong connections. It is like building a bridge between two islands of knowledge. The bridge gets stronger with every step you take.

The Study Snapshot

Researchers tested this tool with 21 Spanish-speaking preschoolers. They split the children into three groups. One group used the bilingual computer program. Another group used the same program but only in English. The third group continued with normal classroom activities.

They checked the children's progress before starting. They checked again right after the lessons. They checked one more time six weeks later. This timeline shows if the skills truly stick.

The bilingual group showed the biggest gains in Spanish. They learned new words faster than the other groups. This proves that mixing languages helps, not hurts. The children remembered the words long after the class ended.

In English, both computer groups did equally well. The bilingual program did not hurt their English skills. It actually helped them keep up with their peers. The children learned to name things and define words in both languages.

This doesn't mean this treatment is available yet.

The Real-World Impact

This tool could help doctors and teachers in schools. Many clinicians speak only English. They often struggle to talk to Spanish-speaking families. This program gives them a way to support families without needing perfect Spanish skills.

It allows a clinician to guide a parent through a lesson. The computer does the heavy lifting. The parent and child can practice together at home. This builds trust between the family and the medical team.

More research is needed before this becomes standard care. Large studies with hundreds of children are the next step. Schools will need to buy the software and train their staff.

It will take time to get approval and funding. But the results look promising. A simple app could change how we teach young children. It respects their home language while building their future skills.

Study Details

Study typeRct
EvidenceLevel 2
Follow-up1.4 mo
PublishedApr 2026
View Original Abstract ↓
PURPOSE: This study examines the preliminary efficacy of the Computer-Assisted Bilingual Vocabulary Instruction (CABVI) program in promoting Spanish and English vocabulary acquisition among dual language learners (DLLs). It also investigates the impact of the language of instruction on receptive, naming, and definition vocabulary outcomes in both languages. METHOD: Twenty-one Spanish-speaking preschoolers were randomly assigned to one of three conditions: bilingual CABVI Spanish-English ( = 8), CABVI English-only (EI; = 7), or business-as-usual (BAU; = 6). CABVI included audio prompting, interactive storybook reading, and word-focused activities targeting 37 words through explicit instruction. Vocabulary gains were assessed through receptive, naming, and definition tasks at pretest, posttest, and 6-week follow-up. Logistic regression models examined the effects of condition, language, and time on target and implicit (indirect) vocabulary. RESULTS: Bilingual CABVI significantly improved direct (target) Spanish vocabulary across all tasks compared to the EI and BAU groups. Both intervention groups demonstrated comparable improvements in English vocabulary. Implicit vocabulary gains were similar across bilingual and EI groups. Gains in both languages were maintained at follow-up. CONCLUSIONS: Bilingual CABVI provides a structured framework to support DLLs' vocabulary development and may serve as a resource for monolingual English-speaking clinicians. Results indicate the potential of technology-based bilingual approaches to improve language learning and guide clinical practices supporting DLLs' linguistic needs. SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.30926027.
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