Hi Israel,
Welcome to the class.
Preparation is key to conducting an effective interview and ultimately to hiring the best qualified person for the position. Preparing appropriate questions which allows you to make that decision can sometimes be a challenge as can conducting the interview to help you make that determination. The behavioral interview seems to work best for this purpose. Making certain that the questions you prepare allow the candidate to respond in a thorough fashion which helps you determine that person's fit for the job is your ultimate goal. Questions for which a simple yes or no response is adequate will not give you the information you need to hire the best person.
Normally, there will be two final candidates and those questions asked of both candidates allow you to compare the two candidates fairly.
A good interview leads to a good hire and is a win-win for that person as well as for the school.
Pat