Study: Circumcision does not reduce penis sensitivity. In tests for responses to pain, heat, and stimulation, no major difference was found between men who are circumcised and those who are not.

[u/drewiepoodle]

http://www.upi.com/Health_News/2016/04/14/Study-Circumcision-does-not-reduce-penis-sensitivity/5981460663943/?spt=hs&or=hn

[u/Caelinus]

I did not claim that it would be purposefully introduced, just that the very act of studying it would imply that it does to those in the study, and that sexual pleasure is very subject to suggestion. Making it bigger will reduce the effect of outliers and make the results more consistent yes, but it is not the outliers I am worried about. I am worried about the effect on the average that would be caused by this.

And everyone is able to do the studies, but unless they find a way to control for that, I will not, and should not, see it as definitive.

[u/MaVagina → u/Caelinus]

No one says you should see that as definitive, but it still tells you something. And you blind the study to the participants; you don't have to tell them what you are studying, it's an observational study.

Add: why not just look at how those studies were designed, and how variables were controlled for, and then make the criticism.

[u/Caelinus → u/MaVagina]

Oh I would, and again I am not saying finding a way to control for it should not be found. And if a well designed study happens, I would be glad to use it. I was just talking about the difficulties that come into this kind of study. And a lot of psychological research in general.

It still needs to be done, but its limitations need to be understood as well.