I’ve had interviews which start very casually, “we just want to have a high-level conversation, no crazy whiteboard coding or anything”, then, absolutely randomly in the middle of said “high-level” discussion, I get
> “well we did prepare a question to test your quantitative reasoning skills; so assume we have a bug that is detected by an analyzer with a false-negative rate of 0.3% and the probability of a bug existing at all is 7% and <sea of numbers> what’s the probability that a given test will report blah blah blah”
Of course this is communicated purely verbally.
> “This looks like a typical Bayes rule problem. Is that what you want me to calculate?”
> “Maybe, maybe not. That could be an approach. We just want the final percentage. Feel free to pull out your phone and use the calculator.”
Then of course, on the spot, I’m fumbling around with whether you divide by P(A) or P(B) or … to find P(B|A), and mucking around on a 4-function calculator like a dweeb.
So much for the “high-level discussion.”
I talk with them about their previous work, stuff they're proud of, their hobbies and other things. I've recruited teams that excelled compared to their peers, and were certainly more fun than others.
“Hiking, trips to the beach” those are the answers. Any behavioral interview training will say the same
Everyone is lying (or actually boring and unambitious)
Some of my best interviewing experiences have been when as part of the interview I ended up having a discussion about something. But the interview didn't explicitly start with that format in mind.
Some of the worst interviewing interviewing experiences that I've had is when they say that it will be a discussion, and it is, up to the point when they spring an algorithm question out of the blue... it feels so scummy and fake. Ask me about the algorithm if you want, but mixing your question into 40 minutes of discussing other things and pretending that you aren't examining me is a farce.
The intention seems to be to make the experience more authentic and it often ends up having the exact opposite effect.
If your criteria for hiring boil down to "did I like talking to this person", you're probably not hiring well and you're allowing all kinds of biases to influence your decision. If your criteria are specific but you're hiding them behind the pretense of "discussion", you're doing everyone involved a disservice.