Received: 12 September 2018 Revised: 11 July 2019 Accepted: 12 July 2019 DOI: 10.1002/wcs.1515 OVERVIEW Developmental sociolinguistics: Children's acquisition of language variation Elizabeth K. Johnson1* | Katherine S. White2* 1Department of Psychology, University of Toronto, Toronto, Ontario, Canada Abstract 2Department of Psychology, University of Developmental sociolinguistics is a rapidly evolving interdisciplinary framework Waterloo, Waterloo, Ontario, Canada that builds upon theoretical and methodological contributions from multiple disci- plines (i.e., sociolinguistics, language acquisition, the speech sciences, develop- Correspondence Elizabeth K. Johnson, Department of mental psychology, and psycholinguistics). A core assumption of this framework is Psychology, University of Toronto, Toronto, that language is by its very nature variable, and that much of this variability is ON, Canada. informative, as it is (probabilistically) governed by a variety of factors—including Email:
[email protected] linguistic context, social or cultural context, the relationship between speaker and Katherine S. White, Department of addressee, a language user's geographic origin, and a language user's gender iden- Psychology, University of Waterloo, Waterloo, ON, Canada. tity. It is becoming increasingly clear that consideration of these factors is abso- Email:
[email protected] lutely essential to developing realistic and ecologically valid models of language development. Given the central importance of language in our social world, a more Funding information Natural Sciences and Engineering Research complete understanding of early social development will also require a deeper Council of Canada; Social Sciences and understanding of when and how language variation influences children's social Humanities Research Council of Canada inferences and behavior. As the cross-pollination between formerly disparate fields continues, we anticipate a paradigm shift in the way many language researchers conceptualize the challenge of early acquisition.