No improvement to this sentence is necessary. It makes perfect sense on its own and sounds right. "Either" always takes an "or" else the word wouldn't make sense, as it's meant to contrast binary options.
eg.
I'm either going to eat food or drink water.
Try swimming and maybe an idea will pop up, wish u luck!
Answer: Evaluating evidence allows you to have a more rational and logical outlook on problems and situations that you may encounter, rather than basing your decisions off of emotion or inaccurate sources. Having reliable evidence that you have thoroughly evaluated enables you to make better decisions and view things from an unbiased point of view.
Sorry. I'm not sure if this helps or not, but this is the best that I've got (╥﹏╥)
it c just took the test on E2020.