[noslenwerdna]

As an ex-HEP, I can confirm that yes, we had blinding and did correct for multiple hypothesis testing explicitly. As Kyle Cranmer points out, we called it the "look elsewhere effect." Blinding is enforced by the physics group. You are not allowed to look at a signal region until you have basically finished your analysis.

For pre-registration, this might be debatable, but what I meant was that we have teams of people looking for specific signals (SUSY, etc). Each of those teams would have generated monte carlo simulations of their signals and compared those with backgrounds. Generally speaking, analysis teams were looking for something specific in the data.

However, there are sometimes more general "bump hunts", which you could argue didn't have preregistration. But on the other hand, they are generally looking for bumps with a specific signature (say, two leptons).

So yes, people in HEP generally are knowledgeable about stats... and yes, this field is extremely strict compared to psychology for example.