In the 1980s, researchers in child language devised several new experimental techniques to assess children's emerging linguistic competence. Innovations in methodology were needed to bridge the apparent gap between the expectation of rapid language acquisition, based on linguistic theory, and the protracted acquisition that was being witnessed…

Examines similarities between human evolution of language and the development of child's language, including the gradual building of sentence, the use of gestures, and the introduction of symbols. Discusses principles of human uniqueness, brain development, and the internal mechanisms for language stages, and offers conclusions similar to…

Examines the use of finiteness markers copula "BE" and auxiliaries "BE" and "DO" in the spontaneous speech of children with specific language impairment. Focus is on whether the categorical distinctions between main verbs and auxiliaries and/or between the auxiliary types influence the relative order of emergence…

Researchers from several disciplines have contributed to the realization that context or social situation varies in regard to a child's language acquisition. Children acquire both linguistic competence, the unconscious understanding of grammatical rules, and communicative competence, the understanding that language is used differently in different…