Dataford
Top 11
Prep plan
Updated weekly · Last refresh Sep 7
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Searchability® Data Scientist Interview Questions

The questions to prepare for a Searchability® Data Scientist interview. Questions from real interview reports rank first. Updated daily.

11questions
~2htotal time
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1
A/B Testing & ExperimentationStart here. 3 questions · ~32 min
Diagnose Integrity Issues in A/B TestHard

Assess whether an experiment is trustworthy when assignment looks uneven and results may be biased by integrity issues.

PeekingExperimentationSample Ratio MismatchSSearchability®
Design Test for New FeatureMedium

Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.

experiment designfeature evaluationA/B TestingSSearchability®
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 MismatchSSearchability®
2
Behavioral & Leadership3 questions · ~32 min
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3
More topics5 questions · ~53 min
Running Moving Average per SystemMedium
Practice

Calculate daily system activity and its trailing 30-day moving average using PostgreSQL window functions.

Date FunctionsData ManipulationAggregationsSSearchability®
Measure AI Engagement ImpactMedium

Define how to measure whether an AI feature improves engagement, repeat usage, and downstream product value.

KPIsEngagement MetricsSSearchability®
Explaining P Values ClearlyEasy

Explain what a p-value means, how it relates to statistical significance, and how to describe it clearly to non-technical stakeholders.

CommunicationStatistical SignificanceP-ValuesSSearchability®
Window Functions for Top CategoriesMedium
Practice

Rank the top three QuickBooks Online product categories by regional revenue using joins, aggregation, and RANK().

Window Functionssql querySSearchability®
Diagnose a Metric Drop After LaunchMedium

Investigate why a key KPI moved the wrong way after a product change and separate signal from noise.

Lagging IndicatorsLeading IndicatorsDiagnosisSSearchability®

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Hands-on SQL practiceWrite and run real queries in the editor. 1 drill · ~10 min
Rolling 7-Day Average by RegionMedium
Practice
Practice drill

Calculate each product-region's rolling 7-day average sales using daily aggregation and calendar-aware windowing.

Window FunctionsDate FunctionsData ManipulationBayerCCoca-Cola Beverages SingaporeTTesco
The finish line: interview-readyComplete all 11 questions plus 1 hands-on drill to finish this plan.