3.6 Activity: Contagious yawns

Conventional wisdom says yawns are contagious; when you see someone else yawn, you are prone to feel sleepy and let out a yawn yourself. How many times have you caught yourself in this situation, or noticed it in someone else? But will this hypothesis withstand a scientific test? Will data support this claim?

In this activity, you will answer the following research question:

Are yawns contagious?

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3.6: Contagious yawns