Major findings are reported of a longitudinal, naturalistic study of grammatical morpheme development in an aphasic child from 5;5 to 6;1. The majority of the morphemes were not acquired in the same order nor at the same mean length of utterance (MLU) levels reported for normal children. As an alternative to the normal acquisition model, based on…

Analysis suggests that Korean children use different sentence-ending morphemes to encode different degrees to which they assimilate information into their knowledge system, and that they acquire such epistemic distinctions at a very early age. The study focuses on the occurrence of the modal markers "-ta,""-e," and…

A study investigated the hypothesis that children are sensitive to functors in language and only omit them due to factors specific to speech production and after having analyzed them as separate morphemes. This hypothesis was tested as an alternative to two existing hypotheses concerning children's selective listening for content words and for…

A study examined the teaching and learning processes in the mother-child interaction that lead to the child's acquisition of the English morphemes for future and past. Data were drawn from transcripts of a mother and daughter's interaction during a period of active acquisition, age 22 to 27 months. Longitudinal microanalytic and macroanalytic…

The correlation between a bilingual's usage of grammatical morphemes from one of his/her languages and his/her language dominance is examined. The subject is a three-year-old Danish/English bilingual who code-switches at the morpheme level even though she has never been exposed to a code-switching bilingual community. Co-occurrence restrictions…

This paper summarizes the results of a longitudinal study of a child native speaker of French acquiring English. The observation period covered the child's progress from age 4 years, 9 months to age 5 years, 8 months. An analysis was made of the acquisition of the interrogative and negative structures and of nine grammatical morphemes. In…

An historical overview of research on second language acquisition considers research topics examined in observational/longitudinal studies and experimental studies. The questions that have reappeared across both observational and experimental studies concern: (1) whether second language learning is the same or different from first language…