There's the potential for noting behaviors generally related to stress rather than potentially stressful procedures to check stress levels,but then some may argue that this is not genuine scientific proof of stress in hamsters if they're not in the hamster community and know of such behaviors!
However,one could also simply do this on a personal basis with their own hamsters rather than trying to have an entire study.The awareness of stress related behaviors and true signs of inappropriate cages would be excellent to be more widespread,but unfortunately they're not always that well known
