Preschoolers' ability to utilize language in spatial problem solving was tested with 64 predominately middle-class children. The number of correct responses was analyzed using an age/sex/medium analysis of variance. It was found that the verbal response mode leads to substantially more correct responses than do pictures and that girls performed…

Pragmatic development requires the ability to use linguistic forms, along with non-verbal cues, to focus an interlocutor's attention on a referent during conversation. We investigate the development of this ability by examining how the use of demonstratives is learned in Turkish, where a three-way demonstrative system ("bu,"…

A comprehensive bibliography on linguistic input in the home, clinic, and/or classroom is presented. Three general categories of materials are included: language spoken to normal children, cross-cultural studies, and language spoken to special populations. Linguistic input is a term that refers to the special language register that parents use to…

Twenty-four children aged five and twenty-four children aged six were interviewed individually three times during a calendar year. It was found that not only did the children's language develop over the period, as judged syntactically and lexically, but they also showed an increasingly fluent control over their own style. All the children…

The author's purpose in this article is to discuss the aspects of language (especially the development of language in children) to which biological concepts are most appropriately applied. While results of past studies would seem to show that language development is contingent on specific language training, it is important to distinguish between…