5.1 Activity: Kissing the ‘right’ way

A German bio-psychologist, Onur Güntürkün, was curious whether the human tendency for right-sightedness (e.g., right-handed, right-footed, right-eyed), manifested itself in other situations as well.

He investigated whether kissing couples were more likely to lean their heads to the right than to the left. He and his researchers observed 124 couples (estimated ages 13 to 70 years, not holding any other objects like luggage that might influence their behavior) in public places such as airports, train stations, beaches, and parks in the United States, Germany, and Turkey. They chose locations and times at random.

In this activity, you will be exploring the following research question:

What percentage of couples lean their heads to the right when kissing?

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