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Biostatistician practice interview

Planning defensible health analyses, selecting statistical models, checking assumptions and communicating uncertainty to research teams. Practise the 6 questions interviewers ask for this role with follow-ups. Paid plans add scored feedback on every answer.

Practise with Pro

A Pro practice interview, on the Pro plan from ₦5,000 a month billed yearly, or on Premium.

About the role

This is a technical interview about statistical judgement in health and research settings. The panel will assess how you define an analysis before looking at results, choose and diagnose models, handle missing data, produce reproducible work and explain uncertainty to collaborators.

How to prepare

  1. Review a statistical analysis plan you developed and the choices that required the most judgement.
  2. Revise regression assumptions, clustered and repeated observations, missing data and sensitivity analysis.
  3. Prepare to explain effect size, confidence intervals and practical importance without relying on jargon.
  4. Practise describing an R workflow that separates source data, cleaning, analysis and reporting.
  5. Choose an example where you challenged a requested analysis and proposed a better approach.

Common mistakes

  • Choosing a test from the variable names without considering the study design.
  • Treating a p-value as the size or importance of an effect.
  • Using complete cases without discussing the missingness mechanism.
  • Describing code that cannot be traced to a controlled data version.

What to expect

A real first-round interview

6 questions the way interviewers ask for this role, with follow-ups when an answer needs more.

Spoken, like the real thing

Speak your answers in your browser or the free desktop app, with live captions. You can ask the interviewer to repeat anything.

Scored on 5 areas

The things this interview weighs most. With a paid plan, your report shows how you did on each one.

A private report

On Plus, Pro and Premium: every answer scored, your strongest lines quoted and what to say differently next time. Interview creators never see it.

A Pro practice interview, on the Pro plan from ₦5,000 a month billed yearly, or on Premium. Practise with Pro
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