《語言變異與變化》是唯一一本專門研究語言變異和處理共時和歷時語言學中系統和內在變異能力的雜志。社會語言學包括分析語言、文化和社會的相互作用；更具體的變異研究涉及這種相互作用對傳統語言學結構和過程的影響。語言的變異和變化主要集中在語言結構的細節上，在實際的語言生產和處理（或寫作），包括當代或歷史的來源。

Language Variation and Change is the only journal dedicated exclusively to the study of linguistic variation and the capacity to deal with systematic and inherent variation in synchronic and diachronic linguistics. Sociolinguistics involves analysing the interaction of language, culture and society; the more specific study of variation is concerned with the impact of this interaction on the structures and processes of traditional linguistics. Language Variation and Change concentrates on the details of linguistic structure in actual speech production and processing (or writing), including contemporary or historical sources.