Apple Human Factors Engineer interview questions

The process towards the interview was very straightforward and accomodating. I was contacted within seven days after a 30 minute interview with a recruiter and invited for two days of on-site interviews. I was also given a set of tasks to complete and send back prior to the scheduled interviews. Tasks were definitely appropriate for the position, but were held very open-ended (i.e., formulated in such a way that one could really spend any amount of time and effort on them). The in-person interviews were thorough, and >10 people talked to me in private sessions, but all interviews were also very friendly. The majority of questions asked me to explain my background, and for me to relate my background to a potential role at Apple.