Senior year-self studying AP tests?

I’m in my senior year in 4 AP classes. I’m thinking about self studying an AP test or two just to get some cheap College credit. I’m also going to major in psychology so would taking the psych test without the class help me in anyway?

I believe if you want to major in psychology, that a formal class is essential. I have seen people do this with a AP World, but their college major was Chemistry.

@ZealousScholar what if I already have extensive knowledge in psychology and want to go into a more advanced class in college? Are AP tests a good way to go about this?

If AP Psych is offered at your HS, then take the course as stated above^^^. If not, then self studying should be fine. You might also want to consider a dual enrollment Psych course at your local community college.