The process took 1 day. I interviewed at McKinsey & Company in Oct 2010
Interview
Applied as an APD candidate after they came to my school. Didn't think I would get past the application screen because of my unconventional work experience. However, got called in for the IWIA in jersey city. Did the early session: Got there at 9, sat down for the exam, which was ok. The breakout sessions were really helpful in getting me into the case mindset as I had never done such an interview before. This probably showed.
Interview questions [1]
Question 1
case interview was a semiconductor business that faced a decision whether to move into circuit board business.
Straightforward, well structured & well explained. Long duration, with 5 30-ish minute interviews total spread out over the course of a couple of weeks. Great support, information on requirements/evaluations readily available.
Too long - too many rounds. Had to play a game first, then multiple rounds. No follow ups after I was rejected - I got ghosted.
Did not enjoy it - obviously this was a long while back and I was too young to notice but not a good behaviour. Truly no respect.
The process made me feel very unprepared but I was able to get through with all of my studying. I would recommend anyone about to interview with them look at Harvard Business cases as reference