Its really hard to tell from the interviewee's point of view. I felt like I did bad at my Iowa interview, but that was my first acceptance...so I guess I wouldn't say I did THAT bad. Maybe I just was being hard on myself after the interview because the week prior to that interview I got put on hold two places and waitlisted at another. I probably was just being hard on myself, but I still realistically thought it was a bad interview. After getting accepted, I would have to say maybe it was a good interview.
Overall, I would have to say no you cannot get in with a bad interview, BUT we as interviewees have absolutely no way of knowing if we in fact had a "bad" interview, unless you vomit on your interviewer due to nerves. It all comes down to what the interviewer thinks of your interview, and matters not what we think. The best approach is to just do your best, and not stress about the interview after it is done. Its not like you can change your interview afterwards anyways.
Same here with regards to Iowa. It was definitely my "worst feeling" interview. Then again, I think that partially has to do with Iowa's interview structure, but that's a different topic.
This thread seems to recall a debate that happened earlier in the cycle: "how important is the interview?" And there were two camps: a) interview is huge, definitely make or break, b) interview is another part of the application that is factored in.
I used to be in the former camp, but now I that I have actually interviewed at places and heard back, I think that a "bad" interview in the eyes of the interviewer (thanks Irk!), can BREAK your app, but a super interview will not solely get you in.
The two places where I've interviewed where my stats are decently below their average are the exact two places that I've received comments directly following the interviews that said "this was the most interesting interview I've had all season, that was absolutely fantastic!" and the other, "Well, we're supposed to report to the adcom with our feedback about the interview and well, I just want to let you know that I will do everything I can to get you in here. You definitely have the highest recommendation I can give." Almost verbatim for both.
Waitlist and "hold" (waitlist, practically), respectively.
Not bitter at all because I've since had success and feel extremely fortunate and blessed with the results from the cycle. I just want to make sure I share my experiences so that future interviewees understand that you just need to have a "good" interview and be a real person who can hold a relaxed (but still serious) conversation.
Best of luck to those who still have 'em and 2015ers who will have them next year!
🙂