Müller-Lyer Illusion

The classic Müller-Lyer visual illusion is demonstrated in this clip.

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After you've watched the video, click the link below to answer questions about what you've learned.

Video Assessment Quiz

1. The illusion is embodied in what setting?

A. a railroad station

B. a jungle gym

C. a ticket window

D. a zoo

2. As the vertical line moves from right to left, it appears to ________ but in reality _________.

A. stay the same length; grows longer

B. grow shorter; stays the same length

C. grow longer; stays the same length

D. stay the same length; grows shorter