The process took 1 day. I interviewed at McKinsey & Company (Atlanta, GA) in Oct 2009
Interview
First round interview consists of the McKinsey Problem Solving Test. This consists of 26 multiple choice questions on 2-3 business cases presented within the test. Expect to need to perform math by hand that you haven't had to do without a calculator in years, and to do it as fast as if you had a calculator.
I interviewed at McKinsey & Company (Ciudad de Mexico)
Interview
Interview process was really great, all interviewers were friendly and professional. Started with a phone screen, then two case interview rounds with a partner and a senior associate, followed by a final round covering fit and problem-solving skills
Interview questions [1]
Question 1
Tell me about a time you had to influence someone without formal authority
It was a one-to-one interview with a consultant. It's a typical case study. The experience was traumatizing. I know my answers weren't great, the consultant was elegant and didn't bother to hide his boredom.
Interview questions [1]
Question 1
What was the most difficult situation you have encountered in the workplace? What did you do about it?
Had 2 rounds. First was a virtual interview with 2 sessions back-to-back. One case and one PEI in each. Second was a final in person round, with 3 sessions back-to-back with one case and one PEI each.
Interview questions [1]
Question 1
Tell me about yourself
Behavioral questions - There are only 4 PEIs which are listed in their career prep site