As far as the Likert scale nonsense, I am right there with you, all these psychological instruments are pretty poorly framed from my perspective, and while there's some discourse deep in academia about the rigor of various experimental methodologies even in the most broken of social sciences, in practice they don't seem to care much because it's publish or perish baby!
It really doesn't seem like most sciences are quite this broken, though some are clearly trying. Obviously there are people in psychology trying to do good rigorous science, it seems like institutional pressures are not working to support them, and certainly won't amplify rigor over making bold claims that get a lot of press
Like, all this to say that it's definitely worth taking these things with a massive grain of salt, but if you do that, it can still be pretty interesting.
I probably failed due to this agree/disagree test laziness. You never know what they meant by things like “I often enjoy X”. What does strongly disagree mean here? Never? I don’t enjoy? What if I don’t enjoy it, but do often? Why not ask it directly like “I X: never sometimes often” or “I relate to X: hare it … love it”. Even then it’s unclear what “sometimes” means. Once in a year, in a month, in a day? This indirection and vagueness adds so much noise to the result.
I guess all this tells how I think more than the test itself.