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Harry Is in College and Is Asked to Imagine What

question 21

Multiple Choice

Harry is in college and is asked to imagine what the world would be like if humans had never invented the wheel.According to Piaget,if Harry is able to think abstractly about this problem,Harry is in the ____ stage of cognitive development.


Definitions:

Müller-Lyer Illusion

A visual illusion where lines of the same length appear to be different lengths due to arrow-like tails.

Ponzo Illusion

A visual illusion where two horizontal lines of identical length appear different in length because of converging parallel lines in the background.

Necker Effect

An optical illusion related to the perception of a two-dimensional drawing of a cube, which can spontaneously appear to switch orientation.

McCullough Effect

A phenomenon where prolonged exposure to colored gratings causes the visual system to adapt and see complementary colors in grayscale patterns.

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