How to Write Interview Questions
Updated:2008/04/28
How to Write Interview Questions
This subject is about how to come up with good interview
questions if you are looking to hire someone to do a job. The
purpose of an interview in this scenario (different from
interviewing a celebrity or a political candidate) is to qualify
your candidates and differentiate them. Those two go hand-in-hand.
So you should design your interview questions to achieve those
purposes. The following article will go over the types of interview
questions with some examples to explain what good interview
questions look like.
Steps
- Start with an open-ended question. An open-ended
question cannot be answered by "yes" or "no" and it usually does
not have right or wrong answers. It is a good way to put the
candidate at ease, allow them to freely sell themselves for the
job. It is also a good way for you to find out some basic
qualifications of the candidate, and to get some cues as to what to
ask next. Here are some examples of open-ended questions: "Please
tell me a bit about your experience in [insert expertise area]."
"What is the most rewarding job you've had and why?" "Why do you
think you qualify for this job?" Pop quiz: Is this an open-ended
question: "Have you done digital editing before?" The answer is
"no". Because the question can be answered by saying "yes" or
"no".
- Validate the candidate's claims. Does he/she really know
what he/she is talking about? For instance, if candidate said "I
managed a large system implementation project when I was with my
last company.", ask "Could you tell me some of the key activities
you were engaged in when you managed that project?" If the
candidate said "I have done automatic testing for three years.",
ask "Could you tell me the names of some tools that you have used?"
Make sure that your question is phrased very clearly so the
candidate must provide details.
- Obtain basic qualifications. Now it is time to really
obtain some basic qualifications of your candidate. You can do so
by asking them to define a specific term, a specific process, a
technique and what not. The purpose is to really draw out if your
candidate has the basic skill to perform the job duties. Make sure
that it is not too basic or too advanced of a concept, and that
around 80% of the people should know about this if they have really
done it for a while.
- Differentiate your candidates. Provided that your
candidate sailed through all the questions so far, you can start
asking the following questions. Otherwise, by this time you should
know if they possess the basic qualifications for the job. This
next question should either be an advanced version of the last
question or a problem you have experienced before that is difficult
to solve. It can be a problem that you want your candidate to
solve. Now, while you should not expect your candidate to know the
answer (if you expect them to know the answer, then this question
serves the same purpose as the last), you can always be pleasantly
surprised if they know the answer. This question also serves the
side-purpose of revealing the resourcefulness and problem solving
skills of your candidate. If they do not know the answer, what do
they do? Do they simply give up? Do they try to get help?
- Test their soft skills. You are not done yet! More fun
things to follow. By this time your candidate has met the
qualifications of the "hard skills" - skills that are required in
performing the job. But what about his/her personalities,
dedication, loyalty, communication skills, etc. etc. - the so
called "soft skills" for the job? This is the time to ask. It is
always very difficult to make conclusions on someone on these
qualities based on a few questions, but you can always try. My
favorite method is to present the candidate with a scenario and ask
them what they would do in situations like that. Now, you do not
have to tell a long story about it. It is good to leave some areas
vague and allow the candidate to fill in the details, as that might
be in itself revealing. Here is an example: "Your boss is telling
you to buy this tool. You know that there are better tools out
there. What would you do?"
- Qualify yourself and your company for the candidate. You
do not want to waste energy in hiring someone who may turn out to
not like your company. Now it is the time to ask those questions. A
candidate may be focused on "stability", or "growth" or "high pay".
Whatever it is, find out. It is easy to just use an open-ended
question: "So what are you looking to achieve with your career?"
"What is the most important thing about your job?" "Where do you
see yourself in this area in 5 years?" "What are some of the things
that you may not like about your job?"
- Conclude the interview. One way is to ask "Well, Mr. or
Miss so and so, those are all the questions I had for you. Is there
anything else you would like to tell me?"
- Thank the candidate for making the time to come to the
interview. Do not tell them how they did even if they ask. In
general, don't hire people on the spot either. Just say: "We have
quite a few candidates for this position and we will let you know
the result [insert time here]."
Tips
- An interview should really be between 30 to 45 minutes. So do
not pile questions up on the candidate. 7-8 questions are usually
the maximum number to try for.
- If the candidate is very chatty or tend to go off-track and you
are not looking to waste a lot of your time, simply find an
opportunity (an opening in his/her conversation or at the possible
conclusion of a story), and say "Very good. Thank you." and then
ask the next question.
- Be OK with silence. If you ask a question and the candidate is
struggling with answers, let them. Sit tight and wait. We all tend
to want to move on because silence is uncomfortable. As an
interviewer, you need to get used to that.
- Try to let the candidate talk instead of you talking too much,
unless they ask you specific questions. Too many interviewers talk
too much about what their organization is like, what the challenges
are, and they even go off topic and start talking about their dogs
and such. Building rapport with your candidate during the interview
is unnecessary. Act with authority. Do not try to be-friend your
candidate.
Warnings
- In the United States, certain interview questions may violate
Equal Employment Opportunity law. Always acquire the knowledge from
your employer or your local agency as to what is not allowed. You
do not want to get sued for asking the wrong questions. For
instance, do not ask "Are you married?", "How many children do you
have?". Instead, say "This job requires 50% travel, is that
something you are willing to do?"