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Apperly, Ian A.; Warren, Frances; Andrews, Benjamin J.; Grant, Jay; Todd, Sophie – Child Development, 2011
On belief-desire reasoning tasks, children first pass tasks involving true belief before those involving false belief, and tasks involving positive desire before those involving negative desire. The current study examined belief-desire reasoning in participants old enough to pass all such tasks. Eighty-three 6- to 11-year-olds and 20 adult…
Descriptors: Theory of Mind, Developmental Continuity, Cognitive Development, Child Development
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Ruffman, Ted; Slade, Lance; Carlos Sandino, Juan; Fletcher, Amanda – Child Development, 2005
Eight- to 12-month-olds might make A-not-B errors, knowing the object is in B but searching at A because of ancillary (attention, inhibitory, or motor memory) deficits, or they might genuinely believe the object is in A (conceptual deficit). This study examined how diligently infants searched for a hidden object they never found. An object was…
Descriptors: Infants, Object Permanence, Inhibition, Error Patterns