Top 29
Prep plan
Updated weekly · Last refresh Sep 22

ICON Data Analyst Interview Questions

The questions to prepare for a ICON Data Analyst interview. Questions from real interview reports rank first. Updated daily.

29questions
~4htotal time
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1
SQL & Data ManipulationStart here. 7 questions + 3 drills · ~86 min
Handling Missing or Inconsistent DataMedium

Tests practical strategies for dealing with missingness and inconsistencies in clinical data analysis.

data handlingdata integrityICON
Prioritizing Data Queries Under DeadlinesMedium

Tests triage skills and prioritization to deliver accurate clinical data outputs on time.

Prioritizationdeadline managementICON
Ensuring Clinical Data QualityMedium

Tests understanding of clinical data quality controls and integrity practices for ICON deliverables.

Data Qualitydata integrityICON
Reconciling Data Across DatabasesHard

Tests ability to compare, align, and reconcile clinical data sources with attention to discrepancies.

data integrityICON
Working With EDC SystemsMedium

Tests experience with EDC workflows and extracting usable clinical data for analysis at ICON.

Data AnalysisICON
Data Cleaning and Validation ProcessMedium

Tests ability to describe a robust cleaning and validation approach for clinical trial data.

data cleaningdata validationdata integrityICON
Handling Missing Longitudinal DataHard
Practice
Practice drill

Identify missing and invalid longitudinal measurements using scheduled visits and measurement validation rules.

missing valuesdata cleaningdata handlingUUnity Health Toronto
SQL Duplicate Record CleanupMedium
Practice
Practice drill

Identify duplicate transaction rows, retain the earliest record, and delete later duplicates safely.

deduplicationdata cleaningtransactionsOracleAmexBrooksource
SQL Random Generator and DedupMedium
Practice
Practice drill

Remove duplicate trade events while retaining the earliest trade ID for each identical event.

data cleaningData ManipulationsqlJefferies
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2
Behavioral & Leadership21 questions · ~168 min
Prioritizing Across Competing ProjectsMedium

Tests prioritization under pressure across multiple projects, including time management, stakeholder communication, and ownership of trade-offs.

time managementmultitaskingPrioritizationICON
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3
More topics1 question · ~8 min
The finish line: interview-readyComplete all 29 questions plus 3 hands-on drills to finish this plan.