There are two types of study.

A peer reviewed study, with published data and methodology. (it might even be accurate, unless you're a sociologist)

then there is a "study" created by a think tank, PR firm pretending to be a think tank, or a dipshit company pushing something or other.

The latter a good for seeing which rich prick, or group of pricks has the time and money to push a specific agenda. and not much else.