What should I expect?
A competency-based interview is a timed, structured interview made up of specific questions relating to each competency area being assessed. The interviewer will have selected the most important competencies for the job and will ask you for specific examples of your past behaviour in relation to each of them.
You will typically have around five to ten minutes per question. During that time, the interviewer will ask the initial question and then follow this up with a series of probing questions to gather all of the information that they need.