The current study investigated the effects of metacognitive and executive function (EF) training on childhood EF (inhibition, working memory [WM], cognitive flexibility, and proactive/reactive control) and academic skills (reading, reasoning, and math) among children from disadvantaged backgrounds. Children (N = 134, M[subscript age] = 8.70 years)…

It is often argued that metacognition includes 2 components: monitoring and control. However, it is unclear whether these components can operate independently, or whether they always operate as part of a hierarchy. The current study attempts to address this issue. In Experiment 1 (N = 90), age-related differences were assessed to examine the…

Behavioral activation that is associated with incentive-reward motivation increases in adolescence relative to childhood and adulthood. This quadratic developmental pattern is generally supported by behavioral and experimental neuroscience findings. It is suggested that a focus on changes in dopamine neurotransmission is informative in…

One of the main tenets of the mental model theory is that when individuals reason, they think about possibilities. According to this theory, reasoning on what is possible from the truth of a sentence would be psychologically basic, whereas reasoning the other way round, on the truth or falsity of a sentence from a given state of affairs, would…

Although attentional control and memory change considerably across the life span, no research has examined how the ability to strategically remember important information (i.e., value-directed remembering) changes from childhood to old age. The present study examined this in different age groups across the life span (N = 320, 5-96 years old). A…

Examined a theoretical interpretation of recall as a system in which the influences of memory strength, episodic activation, and output interference must be balanced to maximize recall. Children never recalled stronger words before weaker words. As learning progressed, a weaker-stronger-weaker ordering of recalled words emerged. (BC)

Four experiments and an analysis of pooled data from English and Japanese children show a linear increase in understanding false beliefs with number of older siblings; no such effect for children younger than 38 months; no helpful effect of younger siblings at any age; no effect of siblings' gender; and no helpful effect of siblings on a source…

Children either saw, were told about, or felt the contents of a toy tunnel. They were asked what was in the tunnel and how they knew the contents. Three year olds had difficulty identifying the sources of their knowledge. Questions that involved inference proved to be especially difficult for them. (BC)

Investigated egocentricity and ascriptions of knowledge to others in 45 children of 3-6 years. Six-year-olds were better than younger children at assessing the other's knowledge. Subjects were better at assessing the other's knowledge when their own access and knowledge were identical. (RJC)

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…