The Child Language Data Exchange System (CHILDES) is a corpus established in 1984[1] by Brian MacWhinney and Catherine Snow to serve as a central repository for data of first language acquisition.[2][1] Its earliest transcripts date from the 1960s, and as of 2015 has contents (transcripts, audio, and video) in 26 languages from 230 different corpora, all of which are publicly available worldwide.[3] Recently, CHILDES has been made into a component of the larger corpus TalkBank, which also includes language data from aphasics, second language acquisition, conversation analysis, and classroom language learning. CHILDES is mainly used for analyzing the language of young children and speech of adults directed to them.[4]
During the early 1990s, as computational resources capable of easily manipulating the data volumes found in CHILDES became commonly available, there was a significant increase in the number of studies of child language acquisition that made use of it.[1] CHILDES is currently directed and maintained by Brian MacWhinney at Carnegie Mellon University.