Australian children aged 6-9 years (N = 120, 71 females; data collected in 2021-2022) were tasked with remembering the locations of 1, 3, 5, and 7 targets hidden under 25 cups on different trials. In the critical test phase, children were provided with a limited number of tokens to allocate across trials, which they could use to mark target…

The current study evaluated the benefits of free-recall, cognitive load, and closed-ended questions on children's (ages 6 to 11; N = 147) true and false eyewitness disclosures. Children witnessed an experimenter find a stranger's wallet and were then asked to make a false denial, false accusation, true denial, or true accusation regarding an…

Executive function (EF) is a key cognitive process that emerges in early childhood and facilitates children's ability to control their own behavior. Individual differences in EF skills early in life are predictive of quality-of-life outcomes 30 years later (Moffitt et al., 2011). What changes in the brain give rise to this critical cognitive…

This article explores Robert Kegan's adult constructive-developmental (ACD) theory. We compare these ideas to the way educators at each of Kegan's meaning-making levels might plan, implement, and assess digitally enhanced teaching activities. Using Drago-Severson's interpretation of Kegan's concepts, the authors propose that behaviors of…

Change in strategies is often mentioned as a source of memory development. However, though performance in working memory tasks steadily improves during childhood, theories differ in linking this development to strategy changes. Whereas some theories, such as the time-based resource-sharing model, invoke the age-related increase in use and…

Switching between tasks produces decreases in performance as compared to repeating the same task. Asymmetrical switch costs occur when switching between two tasks of unequal difficulty. This asymmetry occurs because the cost is greater when switching to the less difficult task than when switching to the more difficult task. Various theories about…

To investigate developmental differences, preschoolers' performance on four tasks frequently used to measure their understanding of causal and temporal relationships was studied. Based on an analysis of cognitive processes involved in recognition, completion, construction/seriation, and verbal explanation tasks, the prediction was made that…

Comprehension of metaphor was examined in 36 children ranging in age from 55 months to 186 months. The subjects were audiotaped while answering questions about a target sentence that was contextually anomalous. Five pictures were drawn to accompany each story, two relating to the literal meaning of the target sentence, two to the metaphoric…

Discusses hierarchical complexity of tasks as a way of conceptualizing information in terms of the power required to complete a task, and its implications for developmental psychology and information science. Provides an analytic solution to the definition of developmental stages and allows for the possibility within the science of scaling the…

Evidence is provided for gradual age (and, seemingly, cognitive developmental) changes in the acquisition of complex problem solving strategies. Differential performance as a function of exposure to a child-model exhibiting the best strategy also suggests the role of learning in strategy acquisition. (Author/MV)

Cardinality responses are affected by both the direction and nature of the elements in the counting sequence. Error analysis suggests six stages in the acquisition of cardinality. Although there appears to be a developmental dependency between counting and cardinality, this relationship is not significant in all cases. (RH)

Investigates children's difficulty in understanding (numerical) place value. A counting and estimating task, based on Piaget's number theory, was devised to determine if children in grades one through five evidenced this construction. (Author/BB)

In this study comprehension of sentences describing two events occurring simultaneously or in sequence was assessed in 5-, 7- and 9-year-old children. The sentences were at three different levels of linguistic complexity, differing only in whether simultaneity or sequentiality was described. Subjects were kindergarten, second, and fourth grade…

Matrix tasks designed to assess the logical properties of multiple classification and multiple seriation were administered to 105 first, third, and fifth grade children. The tasks included cross-class and double series matrices, each of which had a reproduction and a transposition instructional set, and a revised set of cross-class and double…

This document accompanies the Conceptual Learning and Development Assessment Series III: Tree, a test constructed to chart the conceptual development of individuals. As a technical manual, it contains information on the rationale, development, standardization, and reliability of the test, as well as essential information and statistical data for…