Measured cognitive processing time, imagery skill, and spatial memory span of 128 children and adults, ages 8 to 20 years. Found that performance on spatial memory span tasks was largely predicted by imagery skill, which in turn was strongly linked to processing time; age was much less of a predictor in both cases. (EAJ)

In a study of operative thought in children, 104 children, aged 4 to 9, were tested 5 times with the same 25 Piagetian tasks. There were manifest indicators of synergy in the development of the various behaviors, but it was not possible to validate specific problems of behavior organization. (SLD)

Two studies examined age-related change in proactive interference from previously learned material. The meta-analysis of 26 studies indicated that proactive interference decreased with age. The cross-sectional study found that third through sixth graders' and college students' recall was accurate on Trial 1, but became less so over Trials 2…

Examined role of age and education in adult moral reasoning. Interviewed 195 adults between ages of 19 and 82 using standard Kohlberg moral dilemmas. Subjects' education levels ranged from 3 to 25 years. Found no overall significant effect for age, no significant effect for gender, and significant effect for education. (Author/NB)

Reports results of 14 studies on children's knowledge about thinking. Suggests that preschoolers appear to know that thinking is an internal mental activity that can refer to real or imaginary objects or events. However, preschoolers are poor at determining when a person is and is not thinking. This shortcoming is considerably less evident in…

Examined three-year olds' difficulty in recalling a false belief immediately after they discover the true state of affairs. Challenges the argument that children are genuinely amnesic and their false belief is deleted and no longer available for retrieval. Suggests that three-year-olds have been much underestimated in their capacity to undertake…

Examined the degree to which young children can use anatomically detailed dolls to show what they remembered of their experience in a case of suspected sexual abuse. Very young children had difficulty appreciating and exploiting a representational relation between themselves and a doll. Consequently, they provided more information verbally and…

Maintains that most of the claims made by Morrison, Morrison, and Keating do not undermine the data analysis and conclusion of a study reported in a 1988 paper. Discusses (1) evidence concerning a common rate of developmental change; (2) functions that characterize developmental stages; and (3) procedures for estimating parameters. (LB)

Experiments on the development of face recognition showed that young children can ignore featural information when it has no discriminative value and attend to the internal attributes of the face and indicated a lack of developmental differences in face recognition styles, as well as a tendency to rely on configurational information more than…

Three age groups of 24 people each completed verbal word list tasks and spatial learning tasks 5 times each. Significant age differences were found for total recall and type of task. Younger subjects showed increased levels of clustering--organizing information according to semantic or spatial clusters. Age was not related to temporal order of…

Children of 2 different age groups (11-12, n=246; and 13-14, n=196) were asked to draw and write about dissolving in 2 different ways. Greater percentage of children at both ages gave accurate particle interpretation that accurate view of observable process. Consistency between two ways of looking at dissolving was not found to improve with age.…

A study involving elementary school students in three age groups examined two explanations for the finding that young children tend to classify objects according to similarity relations, whereas adults emphasize dimensional structure. Results countered the view that children perceive objects according to a more primitive holistic structure. (RH)

Reviews and reinterprets current developmental directed-forgetting literature within an inhibition framework. Argues that item-by-item cued directed-forgetting tasks manipulate selective rehearsal to produce greater recall of to-be-remembered than to-be-forgotten items, producing directed-forgetting effects by second grade. Blocked and…

Three experiments used a visual fixation technique to examine whether toddlers interpret speech continuously. Found that 24-month-olds had delayed responses when a competing distractor picture's label overlapped phonetically with the target at onset, but not when the pictures' labels rhymed, showing that children monitored speech stream…

Traced developmental changes in automatic and intentional processing of Arabic numerals using numerical-Stroop paradigm in two studies. In numerical comparison task, found that congruent physical sizes facilitated and incongruent sizes interfered with numerical comparison at all ages relative to neutral control. In physical comparison task, found…