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Younger, Barbara A.; Johnson, Kathy E. – Child Development, 2006
Previous research suggests that model competence does not emerge until relatively late in infancy (20-26 months). Development was systematically analyzed within 3 key areas--count noun learning, dual representation, and categorization--hypothesized to support the emergence of model competence in the second year. In an object-handling preferential…
Descriptors: Infants, Models, Concept Formation, Visual Discrimination

Ridderinkhof, K. Richard; van der Molen, Maurits W. – Child Development, 1995
Examined age-related changes in visual selective attention--ability to resist interference--in children 5 to 12 years old and adults. The interference effect on stimulus evaluation did not discriminate between age groups; however, the interference effect on correct response activation showed a pronounced age-related reduction, suggesting a…
Descriptors: Adults, Age Differences, Attention, Attention Control