This commentary highlights major validation challenges raised, explicitly or implicitly, from the four articles in the special issue on "Validity Considerations for Assessing Language Proficiency in Young Language Minority Students." They are concerned with: (1) the construct definition in consideration of young language-minority (LM)…

In this article, we report on our development of a translanguaged French/English listening task as part of the revision of a test for professors in a bilingual Canadian university. The primary objective in revising the test was to more authentically represent the target language use domain, which regularly includes translanguaging. We describe the…

The notion of language dominance is often defined in terms of proficiency. We distinguish dominance, as a property of the bilingual mind and a concept of language knowledge, from proficiency, as a concept of language use. We discuss ways in which language dominance may be assessed, with a focus on measures of mean length of utterance (MLU).…