Data Validation & Quality Control

Data validation that helps turn raw responses into reliable research evidence

Market Intelligence Unit helps clients review, clean and validate survey data so analysis is based on responses that are more reliable, consistent and usable.

Duplicate checks
Speeding and straightlining review
Open-end quality checks
Validation summary and notes
Overview

Clean data is the foundation of credible research

Market Intelligence Unit helps clients review, clean and validate survey data so analysis is based on responses that are more reliable, consistent and usable.

Validation support when you need it

Our validation support can be used during fieldwork, after fieldwork or before final analysis and reporting.

We help identify data quality concerns early, reduce avoidable reporting risks and give your team a clearer view of the dataset before analysis begins.

Validation Checks

Structured quality checks for better research data

Our checks are designed to identify and reduce low-quality responses, helping improve the reliability of the final dataset.

Duplicate Checks

Review duplicate responses, respondent IDs and repeated records that may affect dataset reliability.

Speeding Review

Check completion times and identify responses completed too quickly for the survey length and complexity.

Straightlining Detection

Review patterned responses, repeated scale selections and low-effort matrix behavior.

Attention Checks

Review trap questions, attention checks and logic consistency across key survey paths.

Open-end Quality

Check for gibberish, irrelevant text, duplicated answers, AI-like patterns or poor-quality comments.

Geo & Device Review

Review geo, device, IP or source information when available and appropriate for the project.

Quota Consistency

Review sample consistency, quota distribution and audience alignment against project requirements.

Cleaning Notes

Prepare validation notes and a transparent summary of what was checked, flagged and cleaned.

Validation Workflow

A practical process from raw responses to cleaner analysis files

We use a practical validation workflow that makes the cleaning process structured, transparent and easier to review.

Define Rules

We confirm quality criteria, validation checks and removal or flagging rules with the client.

Review Data

We review responses against agreed checks such as duplicates, speeders, straightliners and open-ends.

Flag Records

We identify questionable records and separate them for review based on the validation criteria.

Clean or Mark

We remove, mark or retain records based on agreed instructions and project requirements.

Summarize

We provide a transparent summary of what was checked, flagged and adjusted.

Responsible Quality Claim

Quality checks without overpromising

We do not claim that any research process can guarantee completely fraud-free data. Instead, we apply structured checks to identify and reduce low-quality responses, helping improve the reliability of the final dataset.

  • Validation criteria are defined before cleaning begins.
  • Questionable records are flagged for clear review.
  • Cleaning decisions can be aligned with client instructions.
  • Final outputs are supported by validation notes and summary checks.
  • Analysis and reporting are based on cleaner input data.
Deliverables

What you can receive after validation

Deliverables can be tailored based on the project stage, dataset condition and reporting requirements.

Flagged Dataset

A dataset with quality flags showing which records were reviewed, flagged, removed or retained.

Cleaned Analysis File

A cleaner dataset prepared for crosstabs, dashboards, reporting or further statistical analysis.

Validation Summary

A practical summary showing the checks performed, issues identified and cleaning decisions made.

Need to improve survey data quality?

Share your dataset, questionnaire, quality rules and project context. We will review the requirement and recommend a practical validation approach.

Improve Data Quality
Request Validation Support

Tell us about your data quality requirement

Share your project details and we will review your validation needs, dataset status and reporting requirements.

What happens next?

Once we receive your enquiry, we review the dataset stage, questionnaire, known quality concerns and required outputs before recommending the right validation approach.

  • ✓ Dataset and questionnaire review
  • ✓ Quality rule recommendation
  • ✓ Flagging and cleaning approach
  • ✓ Validation summary and delivery plan