Failed a Competency-Based Interview? Rejected? Low Scores? 5 Reasons Why (and Exactly How to Fix Them)

By: Joe McDermott | 30 January, 2026
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failed competency interview? low scores? rejected?

Have you failed a competency interview, been rejected for low scores? Perhaps you are sitting there thinking:

“I did everything right… so why didn’t I get the offer?”

You’re not alone.

I’m Joe from InterviewGold. After coaching thousands of candidates over the past 20 years (here in the UK and worldwide), I can tell you something most people never realise:

Smart, experienced candidates fail competency interviews all the time.

  • Not because they can’t do the job.
  • Not because they lack skills.

But because they’re giving weak, low-scoring answers—without knowing it.

The good news? These mistakes are fixable. And once you fix them, your scores can jump fast.

Let’s break down the 5 biggest reasons you failed—and what to do differently next time.


Reason #1: Experience Is Not Evidence

This is the first trap good candidates fall into.

They assume experience speaks for itself.

But in a competency interview, experience only matters if you translate it into evidence.

Interviewers can’t score:

  • Your job title

  • Your years of service

  • Your level of responsibility

They score:

  • Actions you took

  • Decisions you made

  • Outcomes you delivered

  • What you learned

How to fix it

When you answer, stop describing what “the team” or “the organisation” did.

Instead, make your contribution impossible to miss:

  • I identified…”

  • I decided…”

  • I implemented…”

  • I escalated…”

  • I measured…”

Rule: If your answer could be copied and pasted by someone else in your team, it’s not evidence.


Reason #2: Talking Like an Expert Instead of a Candidate

This one is sneaky.

Experienced people often speak like insiders. They use:

  • Acronyms

  • Shorthand

  • Assumptions

  • “You know what I mean” language

But interview panels aren’t inside your head.

And competency interviews are usually time-pressured and score-driven, which means anything that isn’t crystal clear can be missed.

If assessors have to infer what you did, they usually won’t.

How to fix it

Aim for simple, explicit clarity:

  • Replace acronyms with plain English

  • Explain context in one line

  • State your actions in short sentences

  • Make results measurable

Rule: If a stranger can’t score it, it won’t score.


Reason #3: Over-Complex Answers Kill Scores

This surprises people.

Smart candidates often give overly complex answers. They:

  • Over-explain background

  • Spend too long on Situation and Task

  • Add details that feel impressive (but don’t score)

Competency interviews don’t reward complexity.

They reward clearly demonstrated behaviours.

Interviewers are listening for:

  • What actions did you take?

  • How did you do it?

  • Why did you choose that approach?

  • What was the result?

Extra detail doesn’t add marks. It dilutes them.

How to fix it

Use a tight structure and protect your time:

  • Situation: 1–2 lines

  • Task: 1 line

  • Action: 70–80% of your answer

  • Result: measurable + learning

Rule: If it doesn’t prove a behaviour, cut it.


Reason #4: You Answered the Question… But Missed the Competency

In my experience, this is the most common reason strong candidates fail.

They answer the question, but miss the behaviour behind the question.

Example: I coached a senior candidate with great achievements. I asked a teamwork question. Their answer focused entirely on their delivery of a change project.

Impressive story. Wrong competency.

If your answer doesn’t clearly demonstrate the behaviours being assessed, it won’t score—no matter how good the outcome was.

How to fix it

Before you speak, do this quick mental check:

“What competency are they really testing here?”

Then make sure your actions clearly show it.

  • Teamwork? Show collaboration, negotiation, involving others.

  • Delivering results? Show planning, pace, priorities, tracking.

  • Communication? Show audience, clarity, influence, handling pushback.

Rule: Match your story to the competency, not just the question.


Reason #5: Confidence Can Work Against You

This is a big one.

Some candidates speak fluently and calmly, confident their achievement is strong.

But the answer contains very little actual evidence of behaviours.

They assume a great result is enough.

It isn’t.

Interviewers are trained to listen for proof.

You don’t score marks for sounding good. You score marks for demonstrating behaviours.

How to fix it

After you write your answer, check it against positive behaviours.

A simple target:

Include at least 5 clear behavioural “proof points” in your Actions.

For example:

  • prioritised competing deadlines

  • consulted stakeholders

  • used data to make decisions

  • managed risk

  • handled conflict or resistance

  • improved a process

  • reflected and improved next time

Rule: Confidence is fine. Evidence is everything.


The Shift That Makes Smart Candidates Start Winning

Here’s the change that transforms results:

Stop trying to impress… and start demonstrating.

In practical terms:

  • Slow down

  • Structure your answer

  • Reduce background detail

  • Focus on what you did, step by step

  • Make outcomes measurable

  • Add learning (what you’d repeat or improve)

When you do that, your interview stops being a story… and becomes a scorable performance.


Reframing Failure

If you keep failing competency interviews despite strong experience, let me reassure you:

It’s not because you’re not good enough.

It’s because the system rewards evidence, not expertise.

Once you learn to translate your experience into clear actions that show the expected behaviours, everything changes.


Want Top-Scoring Competency Answers (Fast)?

If competency interviews are tripping you up, here is a suggestion that will help immediately:

  1. Join InterviewGold — it includes a brilliant Competency Answer Builder. You tell it your target role and employer, add your CV and job description, and it helps produce tailored, top-scoring answers, including strong STAR examples and the behaviours and strengths interviewers expect to hear.

Get Your Target Job Faster With InterviewGold

Accurate questions, winning answers created for you including brilliant STAR examples, expert advice and much more • 92% success • Boost your confidence • Win job offers.

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About the Author |
Joe McDermott is CEO of Anson Reed the UK's leading interview coaching specialists, founder of the successful InterviewGold online interview training system and published author. Since 2006, Joe and his team of top interview coaches have helped thousands of clients win jobs and in this blog they offer their expert advice - all to make sure you get your top job. Linked In
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