A new study finds that the attractiveness of a lecturer affects how students learn.

The students listened to an audio recording of a twenty minute lecture. During the study each student viewed a picture of the supposed lecturer. The lecture didn’t change in two groups, but the picture associated with it did. One of the group watched a lecture with the attractive, when second with the less attractive speaker.

Their test scores increased by 9.5% (18.27 items correct on average versus 16.68) when they believed their lecturer was more attractive.

Citation: Richard Westfall, Murray Millar & Mandy Walsh; Effects of Instructor Attractiveness on Learning; The Journal of General Psychology Volume 143, 2016 – Issue 3