Describes a study of preschool children's utterances and their context, intended to provide evidence of children's argumentative capacities. Shows how children, though perhaps not consciously, use language to intervene upon reality in order to modify a state of things by sensibly arguing their case. (SED)

Investigates the development of communicative competence during preschool age by analyzing certain types of communicative acts and sequences of communicative acts in adult-child and child-child communication. Assumes there are certain phases in which a child is especially prepared for the acquisition of certain types of communicative acts. (SED)

Reports on a study of the language acquisition of a group of Portuguese children who belonged to two socioeconomic backgrounds: upper middle class and lower class. Aims to show that verbal formulation, referential non-linguistic material pragmatic cues, and cognitive factors play decisive roles in language development. (SED)

Presents a psycholinguistic analysis of young children's performance in Japanese before, during, and after a two-month stay in Japan from the perspective of Vygotsky and the Soviet school of psycholinguistics. Looks at the social function of their utterances, the types of regulation involved, and strategic functions that may be intended. (SED)