Three extrinsic factors were manipulated in a problem-solving task performed by 80 ten-year-old children of I Q 90-110. The factors were: the presence or absence of the name of the concept given in feedback, specific instructions, and whether the child was allowed to verbalize. The task was a modification of Vygotsky's experiment on concept…

The behavior of a preverbal infant was analyzed in a search for orderly and systematic patterns. Basic elements of the infant's repertoire were distinguished. A comparison was made between the nonverbal and those verbal structures which appear early. (Author/RM)

This paper examines the validity of diagnostic categories frequently used to classify children with severe language disorders by determining the relationship of the categories to independently derived developmental, psychological, and medical variables. It is argued that the classification systems currently available too often fail to achieve the…

This article discusses the way in which children use tense to distinguish between different realities in games of pretend. (CFM)

Discusses first and second language acquisition in terms of behavior modification and structural exercises in terms of operant conditioning. The validity of the comparison is also discussed. (Text is in French.) (AM)

One of the most important capacities which children employ when learning language is the capacity to generalize. A child who hears an utterance of a verbal expression while perceiving a particular object (or action, aspect, etc.) becomes normally able to apply the expression not only to this object but also to all those objects which, for him, are…

This research discusses the probability of child witnesses providing a complete and accurate description of an event. Children have been regarded as particularly inaccurate, highly suggestible, and basically unreliable in court cases. Psychologists have concluded that younger children are much more suggestible than older children or adults, and a…

This paper offers some ideas on the types of behavior that can be considered precursors to language and that also lay the foundations for logic, mathematics, physics, etc. The paper posits the problem of whether a theory of language must be formulated before one can formulate a theory of language acquisition, or whether the reverse is true. The…

Approximately 1,500 published and unpublished books and articles are listed in this bibliography on the broad area of observational learning in children which includes modeling, imitation, and vicarious conditioning. The majority of sources listed are dated from the 1960's and 1970's although some date as far back as the 1930's. Research in such…

The past 20 years have seen research on language acquisition in the cognitive sciences grow immensely. The current paper offers a fairly extensive review of this literature, arguing that new cognitive theories and empirical data are perfectly consistent with core predictions a behavior analytic approach makes about language development. The review…

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…