AI hiring tools deliver exactly what they measure. But it may not match what you actually hired them to find

The gap between what AI tools measure and what actually predicts success is the Human Signal Gap

I help HR teams understand what their AI screening tools cannot see: the talent they're filtering out, the legal exposure they're accumulating, and the process gaps their vendors have no incentive to disclose.

12 Red Flags Your AI Video Screening Is Filtering Out Your Best Candidates

Dr. Tatiana Teppoeva is a U.S. AI patent holder, former Microsoft data scientist and research manager, and Harvard MS Data Science graduate who helps HR teams identify signal gaps, legal exposure, and process failures in AI-assisted hiring systems. She founded Human Signal Advisory™ to help organizations preserve intelligent human judgment inside AI-driven hiring processes.

This is for you if…

  • Strong candidates keep failing your AI video screening and you can't explain why

  • Candidates who scored well in AI interviews are underperforming after hire

  • Your AI hiring vendor claims their tool is bias-free but you have never independently verified that claim

  • Legal or HR leadership is asking whether your AI screening process is compliant with new state regulations and your team doesn't have an answer

  • A candidate has complained about your AI screening process or threatened legal action

  • A candidate has asked how your AI screening works or why they were rejected and your team didn't have a clear answer

  • You use AI screening tools but have no clear process for how human reviewers should interpret or act on AI scores

  • You are under pressure to adopt AI screening tools but don't know which vendors to trust or how to evaluate their claims independently

Media Coverage Highlights

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How I Help HR Teams

Find the Signal

Gap

Human Signal AI Hiring Assessment™

AI video screening tools score vocal pace, response structure, and facial patterns. They cannot reliably measure judgment under pressure, leadership capability, or real-world performance. I identify exactly where your tool is measuring the wrong things and what that gap is costing you in talent quality.

Protect Your Organization

AI Hiring Governance Review™

Legal exposure from AI hiring discrimination is accelerating across the US. State regulations with significant penalties are expanding every quarter. I help HR teams understand their specific exposure, close documentation gaps, and build a process they can defend to legal, the CFO, and the board.

Evaluate

Your Tools

AI Hiring Technology Advisory™

Most HR teams don't have the technical background to independently evaluate what AI hiring vendors are telling them. I provide the independent perspective your team needs, whether you're evaluating existing tools, approaching a contract renewal, or considering AI screening adoption for the first time.

Get the Complete Picture

Comprehensive AI Hiring Audit™

Most organizations don't have one AI hiring problem. They have several and they're connected. I help you see the complete picture across talent quality, governance, and tool effectiveness and give you one comprehensive integrated roadmap to address all three.

Not sure which applies to your situation? Every engagement starts with a free 30-minute strategy call. No obligation.

All engagements are conducted personally by Dr. Teppoeva.

After Our Work Together

  • You will know exactly what your AI screening tool is scoring and which strong candidates it may be filtering out before a human ever sees them.

  • You will know what your process can defend and what it can't before someone else finds out.

  • You will know which regulations apply to your process, where your gaps are, and what to fix first and how.

  • You will stop discovering problems with your AI hiring process from candidates, attorneys, or regulators and start identifying and addressing them before they surface.

  • You will have confident answers for your CFO, General Counsel, board, or a candidate when they ask about your AI hiring practices.

Frequently Asked Questions

Can AI video screening tools reject qualified candidates?

Yes. This happens more often than most organizations realize. AI video screening tools score specific behavioral signals — speech pace, response structure, facial patterns, keyword alignment. These are measurable proxies, not direct measures of job capability. Candidates who communicate differently, non-native speakers, neurodivergent professionals, experienced executives with unconventional styles, may score poorly on metrics that have nothing to do with their actual performance. Strong candidates disappear from your funnel before a human ever sees them.

Can AI hiring tools create legal liability for employers?

Yes. Several US jurisdictions now impose specific requirements on organizations using AI hiring tools — disclosure obligations, human review requirements, and documentation standards. Candidates have up to 300 days federally, and up to three years in Washington state, to file discrimination claims after an AI-assisted hiring decision. If your process cannot explain rejections in clear job-relevant terms or demonstrate meaningful human oversight, your legal exposure is growing as litigation and regulation accelerate.

How can my organization audit its AI hiring process?

An AI hiring audit examines what your screening tools are actually measuring versus what predicts performance in your specific roles, where your documentation gaps are, whether your human review process is meaningful or superficial, and whether your vendor's bias claims hold up against independent research. It is not a technical software review, it is an independent strategic assessment of whether your process is finding the right people and whether it can be defended if challenged.

What makes an AI-assisted hiring decision legally defensible?

Defensible AI hiring decisions require four things.

First: documentation of what the AI tool scores and why those signals are job-relevant.
Second: evidence of genuine human review at consequential decision points.
Third: the ability to explain any rejection in specific behavioral terms if a candidate or regulator asks.
Fourth: vendor validation that has been independently assessed not just accepted from sales materials.

Most organizations using AI hiring tools are missing at least two of these. Identifying which ones is where the work starts.

Are AI hiring vendor bias-free claims accurate?

Not always, and most HR teams don't have the technical background to evaluate them independently. Vendor validation studies are designed to demonstrate their tools work, not to identify where they fail for your specific candidate population. To assess a bias claim accurately you need to understand what protected groups were included in the validation sample, what job performance outcomes the tool was validated against, and whether an independent third party reviewed the methodology, not just the vendor's own team.

What do AI video interview tools actually measure?

Depending on the platform, AI video interview tools and AI hiring tools typically evaluate two categories of signals. Communication signals: speech pace, vocal consistency, response structure, keyword alignment, and STAR format adherence. Environmental signals: background lighting, camera quality, and facial expression patterns.

These are measurable proxies. They are not direct measures of judgment, leadership capability, or real-world performance. Understanding exactly what your specific tool scores, and what the research says about whether those signals predict job success, is the starting point of every assessment I conduct.

How do AI hiring regulations affect my organization?

AI hiring regulations apply broadly across the US and internationally. What varies is which specific requirements apply to your organization based on where you operate and where your candidates are located.

New York City's Local Law 144 requires independent bias audits for automated employment decision tools. Illinois requires disclosure and consent for AI video interview analysis. Colorado's AI Act, effective January 1, 2027, imposes disclosure, human review access, and three-year recordkeeping requirements. The EU AI Act classifies hiring AI as high-risk and requires documented human oversight. Most organizations are operating across multiple jurisdictions without a clear picture of which requirements apply to them.

This landscape is evolving rapidly. What applies to your organization today may expand significantly within the next 12 months. It is important to stay on top of it to proactively protect your organization from lawsuits, regulatory complaints, and candidate disputes that waste time, drain resources, and damage your reputation as an employer.

Can AI screening tools misread candidates from different backgrounds?

Yes, and the research documents it clearly. AI video screening tools and AI hiring tools are typically trained on historical hiring data that reflects past patterns and often from neurotypical, native English-speaking candidates in North American professional contexts. Candidates who communicate differently due to cultural background, language, neurodivergence, or disability may score poorly on behavioral metrics that have nothing to do with their actual capability. For example, the ACLU filed EEOC charges in 2025 after an AI video screening system scored a deaf Indigenous candidate low for active listening and recommended she practice it.

What does meaningful human oversight in AI hiring actually look like?

Meaningful human oversight means reviewers are genuinely interpreting AI scores in context, not rubber-stamping them. It means your team understands what behavioral signals the tool scored and why those signals are or aren't relevant to the specific role. It means override decisions are documented with specific behavioral reasoning. It means someone in your organization can explain any consequential hiring decision in job-relevant terms if a candidate, regulator, or attorney asks. Most organizations have human review on paper. Fewer have it in practice. The difference matters enormously when a decision is challenged. Assessing whether your current process meets that standard is exactly what the AI Hiring Governance Review examines.

Why should we independently evaluate our AI hiring vendor?

AI hiring vendors have a financial interest in selling and renewing their tools. Their validation studies are designed to demonstrate their tools work — not to identify where they fail for your specific candidate population and roles. Most HR teams don't have the technical background to evaluate psychometric validation claims, statistical bias testing methodology, or the gap between controlled study results and real-world hiring outcomes. Independent evaluation gives you the picture your vendor has no incentive to provide including whether their tool is appropriate for your specific roles, candidate pool, and organizational context.

What is the Human Signal Gap™?

The Human Signal Gap is the difference between what AI screening tools actually measure and what actually predicts success in your specific roles. AI tools score what they can quantify — speech pace, response structure, facial patterns, keyword density. They cannot reliably measure judgment under pressure, leadership capability, cultural context, or real-world performance. That gap between measurable signals and meaningful human capability is where your best candidates disappear before a human ever sees them and where your organization's legal and talent risk quietly accumulates.

How can we detect and handle candidates cheating using AI during job interviews?

AI-assisted interview cheating, candidates using real-time tools to feed scripted responses, is a growing problem. Detection tools can flag suspicious behavioral patterns but they produce fraud scores, not legal proof.

Acting on a fraud score without a documented protocol creates its own legal exposure. Detection tools produce false positives that can disproportionately affect non-native speakers, neurodivergent candidates, and professionals with atypical communication styles — the same groups AI screening already struggles to evaluate fairly.

The defensible approach is a documented protocol that specifies what behavioral observations trigger concern, what steps reviewers take, and critically — what interviewers can and cannot say to a candidate based on a fraud score alone. A fraud score is reasonable suspicion. It is not grounds for accusation without documented evidence.

The threat landscape extends beyond individual candidates — organized deepfake operations targeting remote technical roles have been documented at scale, making identity verification and behavioral observation skills increasingly essential components of any hiring process.

Building that protocol is something I help organizations develop as part of any audit engagement.

Where do I start if I think my AI hiring process has gaps?

Every engagement starts with a free 30-minute strategy call. We discuss your specific situation, which tools you're using, and what's causing your concern. Based on that conversation I'll suggest which assessment makes the most sense or tell you honestly if something else would serve you better.

Ready to talk?

All engagements are conducted personally by Dr. Teppoeva.

Why This Matters And Why I Can See It

I spent 17 years at Microsoft and Boeing as a data scientist and research manager. I built and understand predictive AI systems from the inside out, including work that led to a U.S. patent for machine learning that predicts system failures from real-time behavioral patterns.

That foundation means I understand how these models are designed, what they actually optimize for, and where training data assumptions create systematic blind spots that produce confident but wrong predictions.

AI hiring tools use the same foundational logic predicting future performance from behavioral signals. The architecture evolves. The failure modes don't.

My background in psychometrics, the science of measuring psychological attributes, means I can evaluate AI hiring vendor validation claims at a technical level most HR consultants and employment attorneys cannot. When a vendor says their tool is validated and bias-free, I can read the technical report and tell you what it actually proves and what it doesn't.

At Boeing I built an end-to-end employee data system, from quarterly surveys through database design to executive reporting, managing personal employee data with appropriate governance controls as the sole custodian before anonymization. I understand what responsible data handling looks like in practice, not just in policy.

I have practical experience building evidence-based cases, constructing documentation trails, and understanding what defensible records actually require. I know the difference between documentation that looks complete and documentation that holds up under scrutiny.

I launched Human Signal Advisory™ after seeing the same pattern repeatedly: organizations investing in AI hiring tools they couldn't explain, couldn't defend, and couldn't evaluate independently.

Credentials

  • U.S. AI Patent Holder in predictive ML systems

  • Harvard MS Data Science

  • PhD in Economics

  • 17 years at Microsoft and Boeing: data science, predictive modeling, research management

  • Psychometrics and assessment methodology. Questar Assessment Inc.

  • Certified in personality profiling, behavioral analysis, and voice analysis

  • Distinguished Toastmaster

  • Featured in TIME, Business Insider, AP Newswire, and syndicated globally

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Testimonials

"Her work was extraordinary and I would strongly recommend Tatiana continue pursuing the psychometric field as a professional career."

— Valerie Sheridan, Senior Director, Senior Psychometrician, CFA Institute

Ready to identify where your AI screening is missing hiring risks?

One Nonverbal Ecosystem
Disclaimer: All Human Signal Advisory™ programs and content are educational and informational in nature.
They are not a substitute for legal, employment law, or HR compliance advice.
Where legal counsel is required, clients will be advised to seek qualified employment counsel.

© 2026. One Nonverbal Ecosystem. All Rights Reserved. Privacy Policy. Terms & Conditions.

Helping HR teams detect hiring risks AI tools miss

AI Hiring Risk Consultant. Human Signal Advisory. AI Screening Audit. Tatiana Teppoeva, PhD.