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I love that their source is just porn… Sorry, “authentic sexual episodes shared online”
Wouldn’t porn have a clear bias due to selection issues, if fake moaning is more common in porn than in real live? Then again gathering experimental data would have an experimenter demand issue. Just imagine you are a participant in the natural human sex sounds study. Hard to imagine that you do not take that consciously into account.
I would have thought that it’s not a great source, but also I’ve only read half the abstract of this paper so who am I to say?
I’m going to have to check their sources to see if they are credible.