To allow for more systematic research on cross-linguistic influence in bilingual children, we developed a web application called Meta-CLI (https://ru.nl/meta-CLI). This web app was developed at Radboud University as a follow-up of the 2022 meta-analysis on this topic (van Dijk et al., 2022). To obtain a comprehensive picture of cross-linguistic influence, the child bilingual research community should work more closely together and combine results from individual – possibly underpowered – studies. To facilitate this, the Meta-CLI app allows researchers to add their own experimental results on cross-linguistic influence to the database from van Dijk et al. (2022), thus creating a dynamic meta-analysis that serves as a continuously updated retrospective summary of previous studies. Meta-CLI automatically calculates statistics based on the most up-to-date version of the database so that the research community always has access to the most up-to-date information regarding cross-linguistic influence in bilingual children. In addition, researchers can run their own meta-analyses on different subsets of the database, which will not only further our understanding of cross-linguistic influence, but can also be used by individual researchers to perform power analyses when designing future studies.

Have you conducted experimental studies on cross-linguistic influence in bilingual children? Then we invite you to add your data via the Meta-CLI app! Adding your data will not only help in creating robust, systematic and open science, it will also increase the visibility of your study!

Studies can be added if they...
tested for cross-linguistic influence on a specific morphosyntactic property using an experimental design (but no priming or narrative studies);
compared a bilingual and monolingual group;
tested children of <18 years whose onset of bilingualism was <4 years;
did not test bimodal bilinguals, adoptees or children with DLD.

Detailed instructions on how to add data can be found in the accompanying tutorial paper (see: https://ru.nl/meta-CLI).

Linguistic Field(s): Language Acquisition