Categorization responses of 6 and 11 year olds and adults to test stimuli were examined against predictions derived from 2 models that stressed prototypical features or information about exemplars. For six year olds, only the prototype model fit the data. For the two older groups, both models explained variance in performance. (PAM)

Used stepwise discriminant analysis on calibration sample (n=135) of juvenile inpatients to determine which variables best distinguished violent inpatients. Cross-validated model on 123 subjects. Violent subjects were more likely to be younger males with family history of criminal behavior and extensive discord. Violent subjects showed differences…

Assessed developments in the theory of mind suggested by changes in the organization of cognitive verb extensions during elementary school years. Found three major changes with development: increased understanding of the role of memory in input functions, increased interrelatedness of memory- and comprehension-related verbs, and increased…

Examined knowledge about medicines and perceived benefit among 101 children, ages 7 and 10. Found that medicine knowledge was explained using age, educational environment, and degree of internal locus of control as significant predictors. The negative effect of internal locus of control predicted perceived benefit. Retention of drug advertising…

Investigated suppression of activation and retrieval paths to information stored in long-term memory. Subjects were 94 children in grades 1, 3, and 5. Found that the ability to intentionally inhibit the maintenance and recall of irrelevant information improves over the elementary years, and children are less able than adults to withhold production…

Considers the relative lack of research attention to retention in developmental psychology and recent findings on age differences in retention. Highlights unresolved issues and how Bauer and colleagues' work may help set the research agenda and contribute to a shift in how early childhood retention is studied. Discusses memory strength,…

The current study developed a new paradigm to determine the age at which children begin to show the self-reference advantage in memory. Four-, 5-, and 10-year-olds studied lists of colourful object pictures presented together with self or other face image, and participants were asked to report aloud "who is pointing at the (object)."…

We used a person perception paradigm to investigate whether ascriptions of personal traits differ for a young versus old target being interviewed for a volunteer position that will require the performance of memory-related tasks. Perceivers (52 men and 92 women, ages 18 to 75 years) read a script in which a young or old target interviewee was…

Previous research on intelligence and aging has relied on tests developed for younger adults, which often incorporate many factors that could impede optimal performance in elderly populations. To investigate short-term longitudinal changes in memory, intelligence, and perceived competence in everyday situations among older adults, 227 adults were…

In this study 27 third graders and 27 sixth graders were given varying degrees of practice in sorting salient, categorized word lists. The purpose of the practice conditions was to encourage different levels of grouping strategies in a subsequent free recall task using similar categorized materials. Children in a Materials Only condition were…

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…

The differences in performance on a variety of cognitive measures were studied in 67 learning disabled (LD) and normal elementary school children. Younger and older Ss were administered tests of conceptual sorting, central and incidental learning, and selective attention. Teacher ratings of classroom hyperactive behavior were also examined. LD Ss…

Three studies tested the theory that long term memory consists of a semantically organized network of concept nodes interconnected by leveled associations or relations, and that when a stimulus is processed, the corresponding concept node is assumed to be temporarily activated and this activation spreads to nearby semantically related nodes. In…