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ReDem, now part of Rep Data, helps research teams detect low-quality survey responses in field with AI-powered data quality checks.
Data Quality & Reliability
ReDem, now part of Rep Data, is an in-survey data quality assurance solution designed to help research teams evaluate response quality while surveys are still in field. By assessing behavior, timing, consistency and content at the respondent level, ReDem helps detect AI-assisted fraud, inattentiveness, automation and other forms of low-quality participation before they affect results.
As part of Rep Data’s broader data quality approach, ReDem extends Research Defender’s pre-survey fraud prevention with in-survey response evaluation, giving research teams end-to-end coverage across the survey lifecycle. This integrated approach helps reduce reliance on post-field cleanup and supports more consistent, transparent quality decisions.
ReDem applies automated quality checks during fieldwork or through post-field uploads, with results consolidated into the ReDem Score (R-Score), a clear respondent-level measure of data quality. Its in-survey modules include content and duplication checks, coherence analysis, grid pattern detection, time pattern analysis and behavioral analysis to identify low-quality, non-human or assisted responses.
Used by agencies and enterprise research teams, ReDem helps reduce post-field remediation, improve consistency across studies and deliver cleaner, more reliable survey data.





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The Behavioral Analytics Score analyzes typing patterns to detect whether responses are naturally typed, copied, or generated by bots.

The Coherence Score uses AI to automatically detect contradictions and implausible answers across all survey responses.

The Open-Ended Score uses AI to analyze and categorize open-text answers, including AI-generated, duplicate, off-topic, or nonsensical responses.
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The Time Score measures total and per-question time to spot participants answering unusually fast or slow.

The Grid Question Score detects response patterns like straightlining, zig-zagging, or other irregularities across grid questions.
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Greenbook experts provide answers to a wide range of questions, both common and uncommon, about market research and analytics that connect to the kinds of services and expertise ReDem offers.
Prepared by Greenbook editors. Technology was used in the editorial process.