The MMPI-2 is pretty neat if you ever get to look at a test and see the way people answer questions and how the MMPI is Scaled or Graded. Psychs really can tell a lot from the test that you might not even know about yourself. http://www.upress.umn.edu/tests/mmpi2_scales.html
If you go to the link above you can see how in depth this really is.
If you see where the "L" is for Lie that comes up a lot and that is one of the biggest red flags there is. Some of the questions that go with that are such as ... "You always tell the truth" and people will put True. It is arguable, but anyone who puts true is going to get a L beside that question. It's just what I've seen come up a lot.
Anyways, I wouldn't really worry about it. As long as you don't have an extensive criminal history (which could be one reason you have an interview.. not saying you are a criminal though
) but anyways.. you will be okay.
I can say I have seen a few people get denied straight from the MMPI itself but it is very rare.
There is another test some utilities have started using called the PAI which is basically the same thing as the MMPI-2 but only about 170 questions compared to 576 or whatever it is. Hopefully a lot more will go to this. The only downfall to me is that the MMPI is on a 5th grade reading level I believe whereas the PAI is at a 3rd grade if I'm not mistaken. Seems to me we should be getting better not worse but hey it is what it is.