Alright, look.
You're dismissing professors out of hand. You're presuming to know as much as them, yet they have the PhD.
I know for a fact, a psychology professor would tell you what is required for a study.
I gave you some pointers and you're trying to create messes where there are none. So, assuming they will just refer to the CDC or whatever government agency, and you don't trust that government agency, what does a solid study look like to you? Try to organize your thoughts and your structure on this one so I can carefully guide you through the process. There's a reason that we use the form for study that we do.
Just because one person says "I FOUND SOMETHING!" Doesn't make what they found viable.
If "the professors research the scientific topics" (that's kind of a really watered-down version of what they do) and not the public health agencies themselves, why would they refer you to the government agencies to trust them, and not their own credibility which has their signature on their work? Did you know that you need to participate in studies to get your Master's in Psychology? did you know you have to do your own study that provides to the community to get your PhD?
Here's what goes into making a study: https://hwpi.harvard.edu/files/hwp/files/bg_psychology.pdf
You typically need over 1,000 subjects (minimum) to conduct a study (in psychology.) Your study will need to be able to be conducted by others reading your paper without the need to consult you.
It's really sad that the word "study" is being through around so liberally (not the political term) as it nullifies and reduces the value or weight in the word. A study is a long and arduous process. Now, you get people on facebook saying "A study showed..." When it's just a video of one person doing something, taken on someone's phone camera.
I really get the strong implication that you're a conspiracy theorist. You're talking about corruption in the government, but failed to specify what, and have shown no evidence to support the claim. You speak loosely about professors and government agencies. Professors, their job is to teach you HOW to do a study. That's literally what they do. (Some of them anyway.) Then you put straw in the horses mouth and expect them to chew it? Come on, man. You're not doing real good for credibility here. You seem like someone who wants to learn, so I'm trying to be patient. You just have to put your foot through the door.