Typically, a college interview pertains to the prospective student answering questions of the college staff or faculty. The student is eager to be accepted and wishes to excel in the interview. However, a more important interview would actually be a series of interviews between the student's parents and each professor that will teach the student. If the college is effective, as professors teach the student, "the student becomes like the teacher". So parents should want to know what type of person their child will become, should the education be successful. Of course, if the education is not successful, the student doesn't become like the professor and the parents have wasted precious time and money.
Here's a wise and ancient perspective on higher education from St. Augustine, a man whose brilliance is generally uncontested. He realized his education did nothing to change his character and behavior, as he had his "back to God's light". Make sure your professors are facing fully into the light, or their great learning and eloquence will only lead you astray.
From Confessions book 4, chapter 16:
And what did it profit me that I, the base slave of vile affections, read unaided, and understood, all the books that I could get of the so-called liberal arts? And I took delight in them, but knew not whence came whatever in them was true and certain. For my back then was to the light, and my face towards the things enlightened; whence my face, with which I discerned the things enlightened, was not itself enlightened. Whatever was written either on rhetoric or logic, geometry, music, or arithmetic, did I, without any great difficulty, and without the teaching of any man, understand, as Thou knowest, O Lord my God, because both quickness of comprehension and acuteness of perception are Thy gifts. Yet did I not thereupon sacrifice to Thee. So, then, it served not to my use, but rather to my destruction, since I went about to get so good a portion of my substance into my own power; and I kept not my strength for Thee, but went away from Thee into a far country, to waste it upon harlotries. For what did good abilities profit me, if I did not employ them to good uses?