Development in the Estimation of Degree Measure: Integrating Analog and Discrete Representations


We examined adult and child performance on two numerical, geometric estimation tasks. In both tasks adults demonstrated greater accuracy than children as well as more mature representations, in general. Furthermore, evidence from mouse tracking data demonstrates that adult strategy includes the application of discrete landmark values while child strategy, generally, does not. This evidence suggests that adults construct mental representations of landmark values and successfully integrate them into analog tasks. Implications for future intervention studies are discussed.

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