If you have any doubts about the validity of the research, I urge you to read the linked paper. It’s a great example of researchers who go above and beyond the call of duty to eliminate as many confounders as possible.
I’d be more confident if there was any research by someone other than Pelman on the subject. There is always a possibility for biased selection of data and deceptive interpretation of analysis.
I’d be more confident if there was any research by someone other than Pelman on the subject. There is always a possibility for biased selection of data and deceptive interpretation of analysis.