For more effective interviews, P&G recommends using C.A.R.

During your interview, you should use the C.A.R. technique (Context, Action, and Result) when answering questions about your experiences, so that you can sell yourselves to the interviewer. The CAR technique supplies the interviewer with clear and concise information to give you a competitive advantage over other candidates. The interviewers have less than one hour to decide if you’re a good fit, so your ability to sell yourself in that time will determine if you get the job. 

C – Context

Make sure the interviewer has a good idea of the situation in which the action takes place. Your ability to explain the critical nature or pressure of the situation will help the interviewer understand the results you achieved.

Typical: “I was the president of student government.”
Preferred: "As president of the student government association, I wanted to ensure that we were actively involved in all activities that affected student life."

A – Action

Make sure the interviewer knows the steps you took to make the situation a success.

Typical: "I developed a plan to help raise money by selling refreshments.”
Preferred: “I developed a plan to bring in local radio personalities prior to football games for pre-game activities. I was able to convince the other officers that this would be popular with the student body and that it was also a way for us to raise funds by selling refreshments."

R – Result

Make sure the interviewer understands what you achieved or made happen.

Typical: "This became one of our biggest fundraisers."

Preferred: "After the first home game everyone saw how successful it was and how much fun everyone had. We had a big increase in our attendance at home games because of this. It also became one of our biggest fundraisers by raising close to $5000 by the end of the season."