[jmiwhite]

This is addressed in the study[0] on the third page (4429):

"The pitch videos showed images related to the ventures, but they did not show the entrepreneurs themselves. Participants heard the entrepreneur’s voice-over narration while they watched each video. This video pitch format allowed us to dub in a male voice and a female voice (randomly assigned), holding the narration script constant. After watching the videos, participants chose which company to fund."

[0]: http://www.pnas.org/content/111/12/4427.full.pdf

[danieltillett]

This is such garbage science I can't believe it was published in PNAS outside of an old direct submission. Using only one narrator for each sex just tests the narrator and tells us nothing about the role of gender.

[natmaster]

Thanks!