I should've added that standardization means also means that a test is administered to a reference population and that the scores are relative. For example, an IQ score is standardized in the sense that it expresses how good a raw score was relative to the raw scores of the population against which the test was standardized.
I have been thinking of taking a batter of tests as a form of self-discovery. Because I've long had a feeling that my cognition is plagued by some type of a narrow deficit and I can't quit put a finger on.
Yeah, that's how I'd formally define a standardized test, too. So I think we're on the same page.
Good luck in figuring out what seems off about your cognition! I hope you'll post about your journey (if you feel comfortable doing so).