“JAMA said Cornell couldn’t “provide assurances regarding the scientific validity of the 6 studies” because they didn’t have access to Wansink’s original data.”
“Professor” Michael Mann has put the same sort of restrictions on access to his original data.
Item number two on the three-point list stop p-hacking:
Open data sharing: Increasingly, scientists are calling on their colleagues to make all the data from their experiments available for anyone to scrutinize (there are exceptions, of course, for particularly sensitive information). This ensures that shoddy research that makes it through peer review can still be double-checked.