Analysis of results of tests of cognitive development in Papua New Guinea children indicated that membership of different language/culture groups was an important source of variance. (Editor)

This paper presents a means of evaluating answers to comprehension questions by analyzing the oral language used in the answers to the questions according to the average number of words per communication unit, a measure of linguistic and cognitive growth, in order to determine the effectiveness of comprehension questions asked at two cognitive…

Question-answer interactions were chosen as an effective means of investigating the effect of the linguistic environment on language development. Research was reviewed indicating that the improvement in question and answer performance of a maturing child is based on the advancement of both his linguistic and cognitive abilities and that the adult…

Investigators agree that mothers employ a variety of request forms and that children seem to be able to respond to these forms with a remarkable degree of accuracy. It is suggested that the speech of mothers to their children is filled with requests which are really not requests at all. It is shown that many of what appear to be adult requests to…