Surveys?

“Yes I’ve been in an accident on my bike Mr. Poll Taker.”

“What? Of course it was the other guy’s fault!”

No, surveys like where researchers show up to hospitals and look at the police reports for the injured cyclists.

Sorry if I wasn't clear in my wording. By "survey" I was trying to point to the specific kind of research methodology where you survey people about what has happened in the past instead of trying to control variables like in a typical experiment.

I wasn't talking about random internet polls or self-reported blame analyses, but actual research papers.