A researcher observes that a 4-month-old infant shows signs of surprise when a toy car, after rolling behind a screen, does not reappear on the other side. According to a foundational stage-based theory of cognitive development, this type of understanding was not expected until around 8 months of age. How does this research finding relate to the original theory's proposed timeline?
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A researcher observes a 4-month-old infant who, after repeatedly seeing a toy hidden behind a screen, looks at the screen with apparent expectation. This behavior is interpreted as an early sign of understanding that the object still exists. According to a foundational stage-based theory of cognitive development, this milestone is typically not achieved until around 8 months. What does this research finding suggest about the original theory's timeline?
A researcher observes that a 4-month-old infant shows signs of surprise when a toy car, after rolling behind a screen, does not reappear on the other side. According to a foundational stage-based theory of cognitive development, this type of understanding was not expected until around 8 months of age. How does this research finding relate to the original theory's proposed timeline?