Three part interview spread over 3 hours, each part with a different group, so a lot of repeat questions. First hour was with lead scientist and study coordinator managers (not direct managers for the position). Almost the entire hour was filled with targeted selection questions (STAR). Second hour was with the direct manager. Also included more targeted selection (STAR) questions but not as formal and more conversational and flowing of a discussion. Third hour was the least formal with the other project managers. More of a get to know me portion with some normal interview questions. Received a call a week later and was asked to talk to another group of project managers at a different site. Spoke to them for an additional half hour which consisted of normal interview questions ("Why do you want this job? How do you deal with stress? How do you stay organized?", etc). Overall, a long interview process and answering a lot of questions, but no presentation or anything was required.