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Updated weekly · Last refresh Oct 17

Dexcom Research Scientist Interview Questions

The questions to prepare for a Dexcom Research Scientist interview. Questions from real interview reports rank first. Updated daily.

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1
Statistics & ProbabilityStart here. 5 questions · ~41 min
Experiment Design for HypothesesHard

Design a randomized experiment that tests a specific hypothesis, controls bias, and provides adequate statistical power.

ExperimentationHypothesis TestingPower AnalysisDexcom
Statistical Software and Analysis MethodsMedium

Tests your practical analytics skills and ability to execute rigorous data analysis.

Confidence IntervalsRegressionHypothesis TestingDexcom
Statistical Methods for Research DataMedium

Tests your statistical toolkit for analyzing research outcomes and drawing valid conclusions.

Confidence IntervalsRegressionHypothesis TestingDexcom
Contradictory Experiment ResultsHard

Tests your experimental reasoning, troubleshooting approach, and ability to adapt hypotheses.

ExperimentationHypothesis TestingCausal InferenceDexcom
Research Designs and Use CasesMedium

Tests your understanding of study design choices and their implications for evidence quality.

ExperimentationHypothesis TestingCausal InferenceDexcom
2
Behavioral & Leadership14 questions · ~115 min
Recovering After a Major SetbackEasy

Tests resilience after a setback, including ownership, recovery under ambiguity, and how effectively the candidate regains momentum.

CommunicationOwnershipDealing With AmbiguityDexcom
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3
More topics2 questions · ~16 min
Research Data Accuracy and ReliabilityEasy

Explain a practical approach for validating research data quality and checking that model evaluation results are reliable.

PrecisionAccuracyRecallDexcom
Principles Behind Continuous Glucose MonitoringMedium

Tests your understanding of CGM fundamentals and how they translate to experimental work.

Cross-ValidationFeature EngineeringSupervised LearningDexcom

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