How to Prepare for a Competency-Based Interview

Competency-based interviews are designed to explore how you have actually behaved in specific situations, rather than how you might respond in theory. Employers use them to assess skills such as communication, problem solving, stakeholder management and leadership through real examples from your own experience.

Preparing properly for this style of interview can make a significant difference. Strong examples, structured clearly, are far more persuasive than general statements about your strengths.

Understand the Format

Competency-based questions typically begin with phrases such as “tell me about a time when…” or “give me an example of…”. They are designed to draw out a specific, real situation rather than a hypothetical or general answer.

Employers use this approach because past behaviour is often a stronger indicator of future performance than a candidate's description of how they would ideally approach a situation.

Selecting the Right Examples

Before the interview, review the job description and identify the key competencies being assessed, such as stakeholder management, problem solving, adaptability or leadership.

For each competency, think of two or three specific examples from your career. Choose situations with a clear outcome, ideally ones where your individual contribution was significant, rather than examples where your role in a wider team effort is difficult to isolate.

Using a Clear Answer Structure

A simple structure helps keep your answers focused and easy to follow. One widely used approach covers:

• Situation: briefly set the context
• Task: explain what needed to be achieved
• Action: describe specifically what you did
• Result: explain the outcome, ideally with a measurable impact

The most common mistake is spending too long on the situation and task, and not enough time on the action and result, which is usually what the interviewer is most interested in.

Quantifying Impact

Where possible, include specific detail that helps the interviewer understand the scale and impact of what you did. This might include numbers, timeframes, the size of a team, or a clear before-and-after comparison.

If a numerical measure is not available, a clear qualitative outcome, such as improved stakeholder confidence, a resolved conflict or a process that is now more efficient, can be just as effective.

Preparing for Follow-Up Questions

Interviewers will often ask follow-up questions to understand your example in more depth, such as what you would do differently, how a particular stakeholder responded, or why you made a specific decision.

Prepare for this by thinking through your examples in detail beforehand, rather than only preparing a polished headline version. Being able to answer naturally when asked to go deeper demonstrates that the example is genuine and well understood.

Common Mistakes to Avoid

• Describing what a team did rather than your own specific contribution
• Choosing an example with an unclear or unresolved outcome
• Speaking in generalities rather than describing a specific situation
• Being unprepared for natural follow-up questions
• Using the same example repeatedly for different competencies without adjusting the focus

How VWA Can Help

At VWA, our Consultants regularly support candidates preparing for competency-based interviews, helping identify the strongest examples from their experience and how to present them clearly and confidently.

If you are preparing for your next career step, our Consultants would be delighted to help you position your experience clearly and approach opportunities with confidence. Get in touch with the VWA team to find out more.