We put the first psychological assessmentsonline in 1996
They were scored by neural networks, years before anyone was selling that as AI. Thirty years later the work is the same: assessments rigorous enough for a clinician, and clear enough to act on.
30 Years of Psychometric R&D
Some of it funded by Industry Canada research grants.
Science and Practice
Instruments a psychometrician will defend, in reports a manager can use on Monday.
More than a test publisher
We are psychometricians, psychologists, AI researchers and coaches.
For three decades we have built assessments that HR teams, coaches, therapists and researchers use to make decisions they have to defend.
Our Story
From a basement in Montreal in 1996 to assessments used in more than forty countries.
Online Origins
PsychTests launches the first psychological assessments available online, powered by early fuzzy neural networks and AI-driven scoring.
Mainstream Spotlight
Collaboration with FX Networks’ talk show “The Test” brings psychology to mainstream media.
ARCH Profile Debut
First version of ARCH Profile™ released—a secure assessment platform for professionals.
AI Research Funding
Receives Industry Canada R&D grants to advance AI-based psychometrics and adaptive testing technology.
MatchScale Launch
MatchScale™ (AI-based romantic matching system) launched, pioneering large-scale compatibility algorithms.
Leadership Expansion
PsychTests expands into coaching and leadership development, bridging data with transformation.
ARCH Profile Upgrade
Latest ARCH Profile™ upgrade launches with enhanced analytics and report generation.
Oracien™
Release of Oracien™, an AI-powered omnibus assessment engine capable of generating insights on any psychological construct—in any language.
ARCH Profile is the B2B division of Plumeus Inc., trading as PsychTests, founded in 1996 by Ilona Jerabek, Ph.D. and Vrat Jerabek, M.Sc. It started in a basement and put the first interactive psychological assessments online while most people were still discovering the internet.
The aim then is the aim now: assessments good enough to stake a hiring decision on, written so the person taking them recognises themselves in the result.
Dr. Jerabek writes the specifications and scoring algorithms behind the assessments, and works with the test development team on construct design, item wording and scoring. She edits every instrument before it ships. The test development and engineering teams have built several hundred validated assessments and run the norming and validation studies behind them. Between 2003 and 2007, PsychTests received multiple Industry Canada R&D grants for AI-powered psychometric research.
Co-founder and CTO Vrat Jerabek works in artificial intelligence and computational modelling. He wrote the company’s first scoring scripts and built the mathematical models the early systems ran on, and he continues to work on AI research and simulation. The engineering team has built out the scoring, reporting and matching systems in the years since. They read complex psychological data the way an experienced evaluator would, at a scale no evaluator could manage. Organisations, universities and consultants in more than forty countries use the result.
Oracien™ is the newest piece: a stand-alone AI engine that generates psychological insight on any construct, in any language. It sits alongside the tests rather than replacing them.
Dr. Ilona Jerabek
CEO & Co-founder, PsychTests & ARCH Profile
Ph.D. Psychology
Psychometrician and executive coach
"Psychological insight should empower people—not reduce them to scores. That's why we build tools that are rigorous and deeply human."
Vrat Jerabek
CTO & Co-founder
M.Sc. Computer Science
AI and pattern recognition
"Technology should amplify human judgement, not replace it. Our models are built to read the nuance a careful evaluator would catch, not just to score the answers."
What we actually do differently
Five things. The first one is the reason for the other four.
AI in psychometrics since 1996
We were scoring assessments with neural networks years before anyone was selling that as AI, and Industry Canada funded the research that followed. The models read behavioural data for nuance rather than totting up a score.
Validated, and we will show you the numbers
Every instrument is normed and validated. Ask for the statistical report on any one of them and we will send it before you buy, not after.
Reports a professional can use in the room
Written for the practitioner holding the debrief, not for the file. Graphs, narrative, and what to do next.
Custom builds and licensing
We adapt an existing instrument, digitise a paper one, or build a new one from scratch. The library is also available for licensing.
Built by people who run the debriefs
The reports are written by the people who sit in the session afterwards, which is why they read like a conversation rather than a printout.
Trusted byProfessionals Worldwide
From startups to enterprise companies, our clients span every industry and continent
HR & Talent Teams
Data-driven decisions
- Strategic hiring & promotion decisions
- Team building & development programs
- Succession planning & leadership pipelines
Executive Coaches
Leadership development
- Evidence-based coaching programs
- 360-degree feedback capabilities
- AI-powered development plans
Mental Health Professionals
Clinical practice
- Validated clinical assessments
- Therapeutic intervention planning
- Progress tracking & outcomes
Academic Researchers
Scientific research
- Behavioral & organizational studies
- Large-scale data collection
- Peer-reviewed research validation
L&D Platforms
Enhanced learning
- Psychological insights integration
- Personalized learning paths
- Skills gap analysis & development
Global Impact
See what the assessments actually look like
Browse the catalogue, or take one yourself on the free test drive.