Fluctuations in cognitive task performance in older individuals have been reported. To examine intraindividual variability as a function of practice, 34 younger and 34 older female participants, aged 20-30 years and 70-82 years, respectively, performed a reading span task 16 times over four sessions. Each individual's recall accuracy was analyzed…

A study of children's and young adults' retention of words and their presentation modality addressed three issues: (1) how long the modality information is retained, (2) whether children or adults lose it more rapidly, and (3) whether the word or modality information is lost more rapidly. The study consisted of two experiments. In the first, 32…

Recently, confirmatory factor analysis has been extended to the case of dichotomous data (e.g., Muthen, 1978). In this study, confirmatory factor analysis was applied to all-or-none recall data from a designed experiment. In the experiment, subjects read pairs of English nouns and then tried to recall the right hand member of the pair when…

Various examples of communication in species ranging from bumble bees to dolphins are examined in this paper. Focus is directed to indications of the cognitive ability of each species. The signals of cognition include evidence of: adaptability to a new situation; long term memory; and the property of displacement. Most of the sources reviewed…

To determine if posttests administered immediately following a continuing pharmacy education (CPE) program are reliable predictors of long-term knowledge retention, a portion of three posttests used in three successive CPE programs was readministered to attendees of those programs 8 to 21 weeks later. Posttests do not reliably assess long-term…

Twenty-four college seniors summarized a 167-word text. Five days later, they completed a sentence-recognition task and described components of successful text summarization. It appeared that students who summarized efficiently also stored information in memory efficiently. (Author/CJ)

Summarizes findings on the relationship of working memory and long-term memory to language impairments. Language interventions are discussed, including promoting attention, speaking clearly and slowly, promoting phonological coding, planning activities around topics familiar to the learners, helping learners organize new knowledge, and providing…

Discusses the question of aptitude from within an information-processing perspective, examines how aptitude is conceptualized in this framework, and discusses one possible component of L2 aptitude: working memory. (56 references) (Author/CK)

This commentary on the article by Jones and Smith in this issue examines whether coherent conceptual cores exist in long-term memory; abstract propositions constitute conceptual cores; concepts in long-term memory control behavior; and the primary purpose of developing and using concepts is to taxonomize the environment. (TJQ)

Examined children's ability to accurately monitor sources of suggested information. Age differences were found in the degree to which a misleading suggestion led subjects to believe they actually remembered seeing events that had in fact only been suggested to them. Proposes that these age differences reflect developmental differences in the…

Internal source monitoring and internal-external reality monitoring of actions were compared in kindergartners and fourth graders. Children were asked to recall actions and identify their origins. Suggests the kindergartners' decrement in source monitoring is specific to discriminating memories from highly similar sources such as between actual…

Examined whether interviewer status or a preconceived bias affects children's memory and suggestibility or adults' descriptions of children's reports. Analyses revealed children's free recall accuracy suffered when they were interviewed by biased versus unbiased strangers but not when interviewed by biased versus unbiased mothers. Exposure to the…

Discussed theories relating forgetting rates and age. Developed a theory and mathematical model for examining storage failure versus retrieval failure, true forgetting versus test-induced processes, and storage- versus retrieval-based reminiscence. A series of experiments studied these factors in children and seniors. (BC)

A study of the effectiveness of self-instructional booklets and computer software for teaching dental students endodontic diagnosis found that the self-teaching method may be as effective as traditional lectures in teaching concepts central to development of clinical decision-making skills. Sampling difficulties created problems in assessment of…

Three experiments with preschoolers tested the independence of the current state buffer from working memory. Findings indicated that when a teddy bear was an object put away with other toys, only half the preschoolers remembered its location despite explicit instructions. When the teddy was a character interacting with children, all remembered its…