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American Institutes for Research Data Scientist Interview Questions

The questions to prepare for a American Institutes for Research Data Scientist interview. Questions from real interview reports rank first. Updated weekly.

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1
Statistics & ProbabilityStart here. 5 questions · ~41 min
Statistical Significance in Hypothesis TestingEasy

Explain what statistical significance means and why it matters when interpreting experimental or analytical results.

Hypothesis TestingData AnalysisStatistical SignificanceAmerican Institutes for Research
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2
SQL & Data Manipulation4 questions + 3 drills · ~62 min
3
Machine Learning4 questions · ~32 min
Feature Selection MethodsMedium

Tests your practical approach to selecting informative features and avoiding overfitting.

data preprocessingmodel trainingAmerican Institutes for Research
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4
Behavioral & Leadership17 questions · ~138 min
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5
More topics7 questions · ~57 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityAmerican Institutes for Research
Design a Feature-Concept A/B StudyHard

Design an A/B test to compare two feature concepts, including hypothesis, metrics, power, and a pre-registered decision rule.

ExperimentationGuardrail MetricsA/B TestingAmerican Institutes for Research
Choosing Model Evaluation TechniquesEasy

Explain how you evaluate models using the right metrics, validation strategy, and error analysis for the problem.

PrecisionAccuracyRecallAmerican Institutes for Research
First Checks for Metric DropsEasy

Outline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.

Lagging IndicatorsLeading IndicatorsDiagnosisAmerican Institutes for Research
Common Pitfalls in Experiment ResultsHard

Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.

PeekingNovelty EffectSample Ratio MismatchAmerican Institutes for Research
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