The purpose of an interview is to determine three things about the applicant:
But you won't get an answer to these questions if you haven't prepared properly.
Don't take that risk.
Here's how to prepare for the interview
Once you have a list of applicants who meet your criteria, use this checklist to make sure you're prepared for the interview, advises the Practical Guide to Human Resources Management.
#1: Go over the CV one more time. Make sure you've thoroughly checked dates, gaps and any concerns;
#2: If you have forms that the applicant filled in, check these and make sure they've been filled incompletely and correctly;
#3: Do research on the position as well as the applicant's current position. You don't want to be caught out by an applicant who knows more than you do.
While you don't have to be an expert on every job or position that exists, you need to know enough to interact intelligently and provide information when asked. If in doubt, always ask the applicant to expand on what they've said or qualify a statement;
#4: Review the job description and specifications before the interview, especially if you're interviewing various applicants for different positions in one day; and
#5: Have a list of the questions you want answered during the interview. Keep in mind that these questions must be relevant to the position.
Well there you have it. It's not only your candidate who must prepare for the interview. If you want to get the best candidate, you must prepare as well.