What is a competency-based interview? Definition and examples
A competency-based interview asks you to prove specific skills the job needs, such as teamwork, decision-making or communication, with real examples from your past. Each question targets one competency, and interviewers often score answers against set criteria. They are common in UK public-sector hiring and at large employers, and STAR is the usual way to answer.
Definition
Before the interview, the employer decides which competencies the role needs, usually four to six. Each question asks for evidence of one of them, and interviewers note whether your example shows the behaviours they listed. The format is close to a behavioral interview; the difference is mostly that the competencies are named and scored in a structured way.
In the UK Civil Service, recruitment uses a framework called Success Profiles, and its "Behaviours" element is assessed in a very similar way: the job advert names the behaviours, and you give examples for each.
Common competencies and example questions
| Competency | Example question |
|---|---|
| Teamwork | Tell me about a time you helped a team reach a shared goal. |
| Decision-making | Describe a decision you made with incomplete information. |
| Communication | Give an example of explaining something complex to a non-expert. |
| Leadership | Tell me about a time you motivated others without formal authority. |
| Delivering at pace | Describe a time you met a deadline under pressure. |
| Customer focus | Give an example of going out of your way for a customer or service user. |
| Adaptability | Tell me about a time a plan changed at short notice. |
How answers are judged
Panels usually look for:
- A specific example, not "I always…"
- What you did, not what "we" did
- The behaviours named in the job advert, in your own words
- A result, and ideally what you learned
Example of a strong opening line: "Last spring I had to choose a supplier with two days' notice and only half the data I wanted. Here's how I decided."
Structure each answer with STAR and prepare two examples per competency, so you have a spare if the panel asks for another.
Questions people ask
Is a competency-based interview the same as a behavioral interview?
Very close. Both ask for past examples. Competency-based interviews tie every question to a named skill and usually score it.
How do I know which competencies will come up?
Read the job advert and person specification. The competencies or behaviours are usually listed there.
How long should each answer be?
About two minutes. Panels often have a fixed number of questions in a set time.
Can I use the same example twice?
Better not. Use a different example for each competency so you show range.