The study sought to determine if relationships existed among Piagetian measures of reasoning and memory, and if development of the memory process in normals and retardates is identical. Subjects were 48 normals (IQ 90-110) and 48 retardates (IQ 50-75), all CA 8-20 years. A battery of assessments, including conservation, spatial imagery, and memory…

An information-theory model of human memory was tested in thirteen experiments which involved children (six years and older) and graduate students. The subjects conducted science investigations in laboratory and non-laboratory settings, solved problems of electrical circuits, and participated in classroom science lessons. The tasks used involved…

A probabilistic model (see SE 013 578) describing information processing during the cognitive tasks of recall and problem solving was tested, refined, and developed by testing graduate students on a number of tasks which combined oral, written, and overt "input" and "output" modes in several ways. In a verbal chain one subject…

Two studies (1) investigated memory strategies in subjects with different levels of classification skills, and (2) examined the role of early classification skills in memory. Subjects in Study 1 were 60 (kindergarten and first-grade) children. Classification skills were assessed by a pretest. Subjects were assigned to one of two conditions, free…

This paper describes studies which investigated the nature of the relationship between number of categories and recall performance in children, and attempted to determine whether the category-recall effect increases developmentally. A series of three studies was designed so that grade level and stimulus difficulty would not be confounded.…

The series of experiments described here examined the predictions for free recall from sequential models and the shift formulation, focusing on the roles of short- and long-term memory in the primacy/recency shift and on the effects of expectancies on short- and long-term memory. (Author/RK)

The results of this study suggested that size change may contribute to the forgetting of events occurring late in development, but that neurological immaturity may underly the forgetting of earlier events. (Editor/RK)

The purpose of the present experiment was to explore what it is that people remember about complex pictures. The experiment investigated several types of information which people might remember about two kinds of pictures, those which represent real-world scenes and those which represent collections of objects. (Author/RK)

Tested a hypothesized relationship between rules of sentence transformation and preresponse processing time in a short-term memory and transformation task. Data showed that the amount of processing required by different grammatical transformations does not relate to the theoretical derivation. Available from Plenum Publishing Corp., 227 W. 17th…

Students in grades 4, 6, and 8 were required to indicate whether or not a stimulus word belonged in either of two semantic categories that were held in memory. Results indicated that even for the youngest children semantically similar categories required less search time than dissimilar categories. (GO)

Semantic activities constitute a sub-class of psychological activities; from this point of departure the article discusses such topics as: idiosyncrasies, meaning and causality, internal determinants, neo-associationism, componential theories, noun- and verb-formation, sentences and propositions, semantics and cognition, mnemesic compontents, and…

Research has indicated that interference produced by the sharing of sensory features of paired-associate stimulus words was not eliminated by processing the pairs at the meaning level. These experiments were intended to extend the range of conditions under which the sensory interference effect might persist, and to incorporate the findings within…

Examines in some detail Richard Semon's analysis of human memory, places this analysis in its historical context, and discusses some reasons why this work is virtually unknown today. (Author/AM)

Although taking notes during a lecture can interfere with absorption of information, review of notes before a test neutralized the interfering effect. (Editor)

The latency to classify a test item as not being from a memorized list of category words is usually slower when the test items are categorically related to memorized words than when they are unrelated. This observation has been explained by four models of recognition, which are evaluated here. (Editor/RK)