Children were asked whether someone would get sick from drinking juice placed near a bug. Some preschoolers and most seven- and eight-year olds recognized the need for physical contact with the bug to make the juice noxious, whereas some believed the mere presence of a contaminant made it noxious. Thus, associational contamination sometimes plays…

This study investigated the claim that memory for scenes is qualitatively similar in children and adults. The effects of three schema-related processes on scene memory were tested with 5- to 7-year-old and adult subjects. Both children and adults used two of these processes (added unexpected object effect and congruency effect) but not the third…

Explored preschoolers' eyewitness testimony under conditions designed to maximize or degrade the quality of their event reports. Found that 3- to 4-year olds were highly accurate when questioned nonsuggestively about an engaging experience after a short delay, and could provide substantial information when prompted. However, they made many…

Children between 7 and 13 years of age were presented with scenarios for which they predicted a result derived from 2 or 3 interacting variables. The effect of the interaction of variables was observed for all ages in familiar scenarios, but the effect diminished in scenarios of unfamiliar activity. (BC)

Two studies examined the relationship between cognitive rigidity and cognitive inertia, with a total of 52 children and adults with mental retardation and 50 nonretarded individuals. Findings provide some support for the theory that there are age-related inherent structural differences leading to greater rigidity in older adults. (DB)

This study investigated taxonomic clustering and use of frequency associations as features in the semantic memory of children (n=30 in grades two and six) with learning disabilities (LD). Results suggested that, when individual child-generated word lists (i.e., meaningful) are used, children with LD may not be impaired in their ability to utilize…

Children and adults were tested on a mental rotation task in which letters were presented in different orientations. The task was performed by itself or with a memory task. Results indicated that the relation of response time to stimulus orientation in the rotation task was the same in both conditions. (BC)

When children of three, five, and seven years were tested on two liking-judgment tasks, results indicated that younger children do not make the same types of errors as older children and adults do, and that younger children can more accurately report the variables determining their judgments. (RH)

Investigated mechanisms underlying age-related differences in information processing for production of motor responses, especially development of feedforward mechanisms. Studied 6-, 8-, 10-, and 22-year olds under two conditions: without advance information on movement to be made, and with advanced information on movement. Found beyond 6 years of…

Videotaped preschoolers playing while experimenter covertly placed and later removed a large sticker on their head. Procedure was repeated one week later. Found that most four- and five-year-olds who observed video taken three minutes earlier reached for the sticker, but few who saw video taken a week earlier did so. Fewer than half of the…

Two experiments examined development of economic understanding among 5-, 7- and 9-year-olds. Found that most 5-year-olds understood the goal of acquiring desired goods, and most 7- and 9-year-olds also understood the goals of seeking profits, acquiring goods inexpensively, and competing successfully with other sellers. Results suggest that older…

Examined relationships among theory of mind construct of intention and false belief, problem-solving ability, metacognitive regulation, and strategy use in 39 preschoolers. Found significant correlations between strategy use and theory of mind, and metacognitive regulation and theory of mind. A moderate, but nonsignificant, correlation was found…

Investigates differential effects of goal specificity on maze learning among 40 young and 40 old adults. Results confirmed hypotheses that the presence or absence of a specific goal would disproportionately compromise or enhance, respectively, elderly people's performance. Suggests that instruction based on cognitive load theory can compensate for…

Three experiments examined children's strategic regulation of memory accuracy. Found that younger (7 to 9 years) and older (10 to 12 years) children could enhance the accuracy of their testimony by screening out wrong answers under free-report conditions. Findings suggest a developmental trend in level of memory accuracy actually achieved.…

Participants were interviewed about the biological and psychological functioning of a dead agent. In Experiment 1, even 4- to 6-year-olds stated that biological processes ceased at death, although this trend was more apparent among 6- to 8-year-olds. In Experiment 2, 4- to 12-year-olds were asked about psychological functioning. The youngest…