One finding is that the children in this study did not reach a level in the development of these concepts expected by Piaget of 9-year-olds. (Authors/CB)

Results indicate that when subjects are given explicit instructions as to the interlist relationship and when the transfer list is presented at a relatively slow rate, both positive and negative transfer effects may be obtained in the serial/paired-associate paradigm. (Author)

Purpose of the present experiment was to investigate further the free recall of bilingually mixed lists as well as to look at the possibility of negative transfer when Ss are asked to learn a subset of the items which is made up of only one of the two languages previously presented. (Authors)

Experiment attempts to manipulate experimentally the degree of control present in children four years of age. (Author)

The aim of this paper has been to develop a coherent account of covert operations involved in reading and comprehension, naming, and comparisons of names and shapes. (Author)

It was concluded that in grade school children the tendency to be reflective in problem solving also entails a disposition to take longer in making decisions. (Author)

A level prediction task, in the context of Piaget's conservation-of-liquid problem, was used to analyze the regularities of incompetence'' in the nonconserving or noncompensating child. (Author)

Free recall showed a drop in primacy with practice whereas reconstruction did not, which suggests that temporal tags per se may be relatively unimportant as retrieval cues for the recall of early list members. (Authors)

This experiment investigated performance on a reasoning task in which the subjects had to say which of four half-hidden cards they needed to see fully in order to determine the truth or falsity of a conditional sentence. (Authors)

Two experiments are reported on the effect of negation on reasoning with conditional rules. (Author)

Second, fourth, and sixth graders were trained under conditions of Constrained and Cued recall on a list of randomly ordered nouns comprising 4 categories of things. (Authors)

Results are discussed in terms of variables which may lead to the activation of cognitive structures during the transitional period. (Authors)

Pattern of results suggests that retardates were relatively deficient in the spontaneous use of effective rehearsal mechanisms, but could perform as well as normals when instructed to use a specific rehearsal strategy. (Authors)