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Data Scientist

Tell me about a time your analysis showed something leadership didn't want to hear. How did you present it?

BehaviouralMid levelTests: Communicating findings
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What the interviewer is looking for

  • This question tests communicating findings. Leads with the recommendation, translates uncertainty into plain language, and stays honest when results are unwelcome.
  • What to bring out: Clear headline, solid evidence and caveats, anticipates objections, and offers a constructive next step rather than just bad news.
  • Expect a follow-up like: How did they react, and what happened next?

Another way it may be asked: Imagine your data shows a favourite new feature is hurting sales. How did you, or would you, deliver that message?

A structure to follow: STAR, with the weight on Action and Result

  1. Step 1

    Situation

    One or two sentences: where, when and what was at stake. Pick a real example you were close to.

  2. Step 2

    Task

    What you personally were responsible for. Say "I", not only "we", so the communicating findings you showed is visible.

  3. Step 3

    Action

    The two or three things you did and why you chose them over the alternatives. This should be about half your answer.

  4. Step 4

    Result

    What changed, in your own measure of it, and what you would do differently. Only use numbers you can stand behind.

This is guidance on shape, not a script. Use your own real experience and facts; never invent details to fill a gap. See the STAR guide and answer frameworks.

Common slips

  • Describing what the team did without saying what you did.
  • Choosing an example with no clear outcome, or one you cannot answer detailed questions about.
  • Ending on the action and skipping the result and what you learned.

How to practise it

Write two bullet points for each STAR letter, then say the answer aloud in about two minutes.

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