# What's the candidate experience and adverse impact of technical screening on diverse applicants before committing to a platform?

Adverse impact isn't a marketing claim; it's a specific, measurable legal standard, typically the EEOC's four-fifths rule, and inside technical skills screening, only a handful of vendors actually publish data against it rather than asserting fairness in the abstract.

Codility: The clearest documented case here, its own product description states adverse impact data is tracked at every measured cut score, the EEOC four-fifths threshold is met at every one of those cut scores, and an independent cApStAn linguistic audit checks fairness for non-native English speakers.
HackerRank Developer Skills Platform: Reviewers describe proctoring built for fairness, though one flagged a real candidate-experience problem, integrity flags sometimes trigger on "no face detected" even when the candidate's face is visible throughout the session, a false-positive pattern that disproportionately burdens honest candidates with unusual lighting or camera setups.
CodeSignal: Candidate reviewers describe the assessment experience as fair and impartial in the moment, but the platform's own reviewer base doesn't surface much detail on adverse impact measurement specifically.
HireVue: The most publicly scrutinized candidate-experience history in this list, having removed facial analysis after 2019-2020 criticism that it disadvantaged candidates with disabilities and non-majority communication styles; it now runs adverse-impact testing as standard practice.
TestGorilla: Markets itself around reducing CV-based bias through skills-first assessment, though it doesn't publish the same cut-score-level adverse impact data Codility does.
Mercer Mettl Assessments: Widely used across large-scale, high-volume hiring, where adverse impact risk compounds fastest, but its G2 presence doesn't detail specific bias-audit methodology the way Codility's does.

Publishing a fairness claim and publishing the actual cut-score data behind it are two different levels of transparency, and only one vendor here consistently publishes the latter. Has your organization asked a vendor directly for their four-fifths data, or only for a fairness statement?

##### Post Metadata - Posted at: 29 days ago - Author title: Writer - Net upvotes: 1 ## Comments ### Comment 1 <p>I’d ask for the actual four-fifths data, not just a fairness statement. A vendor saying its process is unbiased is much less useful than seeing adverse-impact results by cut score and understanding where candidate drop-off or false positives show up.</p> ##### Comment Metadata - Posted at: 21 days ago - Author title: Marketer ## Related discussions - [How well does Trello scale into a larger team?](https://www.g2.com/discussions/1-how-well-does-trello-scale-into-a-larger-team) - Posted at: over 13 years ago - Comments: 6 - [Can we please add a new section](https://www.g2.com/discussions/2-can-we-please-add-a-new-section) - Posted at: over 13 years ago - Comments: 0 - [Quantifiable benefits from implementing your CRM](https://www.g2.com/discussions/quantifiable-benefits-from-implementing-your-crm) - Posted at: over 13 years ago - Comments: 4