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Updated weekly · Last refresh Aug 30

Columbia University Research Scientist Interview Questions

The questions to prepare for a Columbia University Research Scientist interview. Questions from real interview reports rank first. Updated weekly.

38questions
~5htotal time
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1
Statistics & ProbabilityStart here. 6 questions · ~48 min
Handling Unexpected Experimental ResultsHard

Tests troubleshooting, statistical reasoning, and decision-making under uncertainty.

ExperimentationHypothesis TestingCausal InferenceColumbia University
Experiment Design for HypothesesMedium

Tests your ability to design rigorous experiments aligned to testable hypotheses.

ExperimentationHypothesis TestingPower AnalysisColumbia University
Assessing Reliability of ResultsMedium

Tests your approach to validating experimental findings and quantifying uncertainty.

Confidence IntervalsHypothesis TestingStatistical SignificanceColumbia University
Statistical Methods UsedMedium

Tests your ability to choose and apply appropriate statistical methods in research.

RegressionHypothesis TestingStatistical SignificanceColumbia University
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2
Behavioral & Leadership29 questions · ~232 min
Owning an Ambiguous Research ProjectMedium

Tests ownership and leadership in ambiguous research work, including stakeholder alignment, communication, and measurable impact.

Stakeholder ManagementCommunicationOwnershipColumbia University
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3
More topics3 questions · ~24 min
Time Complexity of Your ApproachEasy

Tests your ability to reason about algorithmic efficiency and computational cost.

MathArraysSearchingColumbia University
Choosing Models After ExperimentsHard

Assesses your experimental reasoning and model selection process.

model selectionColumbia University
Programming Languages You KnowEasy

Tests your technical breadth and readiness for typical Data Analyst tooling.

ArraysStringsColumbia University

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