but if I ask (say) a paralegal to recite their favourite Shakespeare sonnet in Latin, it tells me nothing whatsoever about them or their skills
may not tell you much, but it would tell me a lot.
Back in 1988 last year at uni, I applied to one of the (then) biggest employers in the UK. They invited me to a 3-hour sit down test (at UCL*) with 200 others. There were 3 papers - 50 minutes each. When the invigilator read out the rubric, there was a tiny clue, which (on the basis that only 10 people were selected) people missed.
The clue was that it would be impossible to answer all the questions. This was compounded by the fact there were some 2-line questions (maths/science) which needed 10 minutes to answer, and 2-page questions which needed 2 seconds time.
Since we were all final-year honours students, I felt it was unlikely the employer wanted to spend such a lot of time and money assessing our maths skills. But every chance they wanted to assess how we coped under pressure. So I decided to triage the questions (and show I had done) and then pick them off in increasing difficulty. Thus showing I had assessed the entire situation, made a decision, and carried it through.
Whatever I did worked, because I was asked back for more tests, and got the job. At that stage, the HR manager asked what I had thought of the tests, and I replied as above. Maybe I shouldn't have used the word "obvious" but ....
Of course, the biggest clue to all the candidates was the department at UCL administering the tests was the Psychology* department. Not the Maths, Physics or Computing department.