Until recently it has been possible only to measure the behavioral products of cognitive processing, e.g. reaction time. However, this is a rather indirect way of studying brain substrates of cognition. Psychophysiological techniques can be used to study the neural mechanisms of cognition. In this experiment brain electrical activity was measured…

Although traditional learning theories are based on a demonstrative view of cognition, human beings tend to reason both demonstratively and dialectically. To examine the dialectical theory five studies were conducted. In the first study subjects rated words that could be used as personality descriptors for likability and subsequently learned them…

The purpose of this research was to examine the relationship between semantic memory or integration and general ability. The main hypotheses are as follows: (1) the ability to memorize meaningless materials will not correlate with general ability; (2) the ability to abstract meaning from semantically related propositions will correlate with…

A random sample of 138 adults was assigned to view one version of a news program in their homes to compare recall of news given by a television newscaster with recall of that provided by a frequently used form of videotex. Both the standard newscast and the cable newspaper gave the viewer no opportunity to select information. News stories were…

This paper presents a study of eidetic imagery in children. An eidetic image refers to an afterimage which is both more vivid and longer lasting than other afterimages. The study attempts to analyze eidetic imagery as a psychometric problem and to relate it to other conceptually similar cognitive abilities. Two hundred forty-two second and third…

This study examined the effects of socio-economic status (SES) and categories of learning when holding ethnicity constant. Seventy-two subjects were randomly selected from two socioeconomic levels; 36 each from middle and low socioeconomic status. Fourth and fifth grade children were used. Three hypotheses were tested: (1) positive correlations…

A cross-cultural study undertaken in Morocco was designed to compare the effects of age, schooling and environment on the development of recall and recognition memory. The subjects were 384 males ranging in age from 7 to 2l years. Additional groups of subjects were also studied: Koranic students, Moroccan rug sellers, and American university…

In a study of the effects of pictorial stimuli on story recall, 64 second graders were randomly assigned to two experimental groups and two control groups. The learning materials consisted of two orally presented ten-sentence stories. The experimental subjects viewed pictures while the stories were read, and the control groups followed the printed…

An age-related decline in performance is typically observed in research on tasks that rely on cognitive processing. However, such declines must not be accepted as indisputable evidence that the learning efficiency of older adults is necessarily impaired. Cognitive factors such as a production deficiency in long-term memory and/or a retrieval…

In order to test the strengths of radio as a learning tool for children, research was conducted in which radio and television were compared in relation to their abilities to stimulate children's imaginations and to transmit information to children. The research involved a series of studies in which children were presented with two unfamiliar…

The purpose of this study was to explore how children use location and distance cues to reproduce movements as compared with adults. Subjects were three groups of children, aged 6, 8, and 10, and one group of adults. A linear slide was used by the blindfolded subjects to indicate one of two experimenter-defined stops. Distance and location were…

Only a longitudinal study, in which retrospective reports can be verified against data collected earlier, can determine what topics tend to be reported accurately and whether certain types of individuals are more likely to be accurate reporters. A representative group of adults who became parents 50 years ago are now part of the oldest and longest…

Only a longitudinal study, in which retrospective reports can be verified against data collected earlier, can determine what topics tend to be reported accurately and whether certain types of individuals are more likely to be accurate reporters. A representative sample of women who became mothers 50 years ago are now part of the oldest and longest…

This study was conducted to test the effect of practice or adjunct questions on learning in a real-world training environment. Subjects were 289 males enrolled in a self-study Naval communications course. Subjects were assigned to one of three experimental groups which received workbooks, or to a control group which did not receive workbooks. The…