Look beyond bias metrics
A tool can produce similar outcomes across groups while measuring something with little relevance to the job. We examine both fairness and the evidence behind its scores.
Why Lingana
Psychology and assessment expertise for AI hiring.
We combine psychological assessment expertise with independent analysis to examine whether hiring AI is fair, job relevant, and supported by evidence.
Lingana means “to be equal.” That commitment shapes our work.
Our foundation
Our South African assessment background
Lingana Labs is CHC Consulting’s AI hiring audit practice. CHC’s work in South Africa includes more than a decade in workplace assessment, and our lead auditor, Clayton Donnelly, is registered as an industrial psychologist in South Africa and has 15 years of assessment experience.
South Africa’s history of apartheid and exclusion has shaped its employment equity framework. The Employment Equity Act requires psychological testing and similar assessments to be scientifically shown to be valid and reliable, applied fairly, and unbiased against any employee or group.
That background informs how we audit AI hiring tools: we ask what they measure, how they perform across groups, and whether the evidence supports their use in a particular hiring setting. For work outside South Africa, we also account for the requirements that apply locally.
What this means for you
What our audits help you understand
Our independent reviews combine statistical analysis with assessment expertise, so findings are considered in the context of how the tool is used.
Understand the hiring context
We consider the roles, candidate populations, and decision points involved, and explain what the available data can and cannot support.
Know what to do next
You receive findings, limitations, and recommendations that help you prioritize action and communicate the results to stakeholders.
Our leadership
The people leading our audit work.
Clayton Donnelly
Founder & CEO, CHC Consulting · Lead Auditor
MCom (Industrial Psychology)
Clayton leads CHC Consulting as an HPCSA-registered industrial psychologist. Certified by the British Psychological Society in Occupational Assessment, he brings 15 years of experience designing, developing and implementing assessments, with extensive work across sectors and continents.
Dina Fleyshmakher
Director of Audit Science
MA, MPhil (Industrial-Organizational Psychology)
Dina is a PhD Candidate in Industrial-Organizational Psychology at Baruch College & The Graduate Center, CUNY. Her background spans personnel assessment, organizational research, and quantitative and qualitative methods. Her doctoral research uses AI-assisted text analysis to understand workplace experiences.
Our wider team
A diverse team of assessment and audit professionals.
Our wider team brings together psychologists, psychometrists, and auditors from varied professional and cultural backgrounds.
- Psychologists
- Psychometrists
- Auditors
12
languages spoken
across our team
Diversity in the audit room
Hiring tools operate across cultures, languages, and communities. Diverse perspectives help us question assumptions and consider how a tool may affect different groups.
The CHC connection
Built on CHC Consulting’s assessment experience.
Lingana Labs is CHC Consulting’s independent AI hiring audit practice. CHC brings more than a decade of experience in assessment, psychology, and people systems to this work.
Talk with the Lingana team.
For audits and other inquiries, email hello@linganalabs.com or send us a message.
Get in touch