Women suffer more pain than men across the whole body, major global study finds
(www.theguardian.com)
paul wasn't saying they definitely feel less pain than they report; he was saying that this study can only measure their reported pain, not their actual pain. He does not need to give you the specific disproof you are looking for because he is not claiming the study's conclusion is definitely false, just that its methodology is not sufficient to prove its conclusion.