>> You mean like the cognitive test that Trump took to show how he is a 'very very smart person' ???? hahahahaha -- 100% stupid waste of time.

The Montreal Cognitive Assessment he undertook is to assess reduction in mental function as you age. So it includes the sorts of questions that we know can be affected by various cognitive dysfunction. As an example, drawing a clock with correct time is very useful legally to detect mental impairment.

To have the mental dysfunction or dementia it was popular to accuse Trump of having, you might expect him to score as low as 16. Also worth noting that there are 2 parts to the test, with unexpected elements of Part 2 frequently catching out people normally regarded as mentally capable. including journalists who scoffed and said Trump's test is easy. From memory, none of them scored 30/30. Unfurtunately MOCA now has been published, which creates self administration/preparation artifact that reduces the value of the test.

Contrast with the CCAT or Wanderlic (WPT) tests for learning, thinking and aptitude of potential employees. Those questions aren't designed to identify loss of cognitive function, but the sorts of skills you'd like in an employee. Some of those questions are also quite easy, but you need a good vocab and arithmetic agility, since some questions expire whether you've answered or not.

Are they any good? I'm privileged not to have needed to seek employment for many decades, but were I to face one of these employment tests- I'd practice and practice. Knowing what to expect and (for example) the styles of arithmetic progression used in these tests, is part of the battle. Adequacy of preparation might even be part of the test if you're looking for employees.

Also have to say that with prepared candidates all of whom have degrees, one of my associates now makes his selection based on... table manners. His rationale is that if you're brought up to eat politely rather than like a combine harvester, which is as much as anything else a sign of respect for those who have to watch as you eat, you're likely to have been brought up with other desirable characteristics that don't show up in a test.