[Question] How could I measure the nootropic benefits testosterone injections may have?

I came across a post written by Gwern in which he says he never injected Testosterone before but is curious to know more about its potential nootropic benefits. I’m suspecting that its more people than just him who are curious about that soo why not experiment myself?

I wanted to “hop on another cycle of gear” (use steroids for 16-20 wks and restore my natural hormonal production right after) anyway but don’t know anything about experiment design so if someone wants to help me out with that that would be pretty cool.