Traditional tests: simple, affordable, but for what result...

This page is not intended to convince through enthusiasm, but through rigor.

If you are an HR Director, public-sector buyer, manager, executive or quality manager, you are probably looking for a precise answer to a simple question: what exactly is this model based on, and what is it not based on?

The problem with traditional personality tests

Building a personality test means selecting characteristics assumed to be stable in order to describe an individual. This is where most tools on the market reach their limits:

- Behavioral approaches inspired by William MARSTON’s work from the 1920s classify individuals according to four broad behavioral tendencies (dominance, influence, steadiness, compliance). To date, these models have not been subject to scientific validation equivalent to that of recognized clinical tools.

- Typologies based on the early 20th-century psychoanalytic work of Carl Gustav JUNG propose a fixed classification into defined profiles. They are regularly criticized in academic literature for a strong Barnum effect (descriptions vague enough to appear applicable to almost anyone) and for the absence of demonstrated predictive validity. A stable, but single, reference point between extraversion and introversion.

- Models derived from Eric BERNE’s Transactional Analysis are based on classifications of ego states or communication profiles. To date, no publicly available evidence establishes a scientific foundation equivalent to that of current clinical classifications.

- Academic five-factor models, currently among the most scientifically robust, remain static by design: they provide a snapshot of five traits (openness, conscientiousness, extraversion, agreeableness, neuroticism) without explaining how personality evolves with age, context or experience.
 

To date, no publicly available evidence establishes a theoretical foundation equivalent to that of current scientific and clinical classifications.

How can personality be assessed if the traits being measured are neither stable over time nor capable of accounting for their own dynamics?

 

The alternative: drawing on the science of psychopathology rather than typology
Another family of tools takes a different path: using a scientific and clinical approach applied to organizations, built on sources that are regularly updated by leading reference institutions:

- ICD-11: the International Classification of Diseases, including personality disorders, published by the World Health Organization.
- DSM-5-TR: the Diagnostic and Statistical Manual of Mental Disorders, published by the American Psychiatric Association.
- PDM-3: the Psychodynamic Diagnostic Manual, 3rd edition, published by Guilford Press.

The advantage of these sources: clinically documented data, regularly revised, incorporating advances in the understanding of psychological functioning mechanisms — rather than being limited to traits frozen at the time the tool was created, as is often the case with traditional tests that are more than 50 years old.
 

PERS6NɅ belongs to this second family, with one essential difference: it deliberately operates upstream from clinical diagnosis. Drawing on the ICD-11 and DSM-5-TR means relying on robust scientific reference points to describe how a person functions, without ever going so far as to describe a disorder.

 

Where the model comes from: from psychoanalysis to Transactional Analysis

PERS6NɅ does not start from scratch. It draws on psychoanalysis and behavioral psychology.
It also uses Transactional Analysis — without making it its primary working foundation — as a framework particularly capable of explaining personality in simple terms while still integrating its complexity.
 

This framework also helps explain how a personality structure develops during the earliest years of life — a period that Erik Erikson, Sigmund Freud, Jean Piaget and Claude Steiner each contributed to documenting from the perspective of psychological development.

Between the ages of 0 and 6, a child develops adaptation strategies: initially protective and useful, these strategies can, in adulthood, become rigid and turn into automatic patterns that are less suited to the present context. It is this early foundation — and the way it continues to express itself today — that PERS6NɅ maps through two distinct levels:

- adaptation strategies developed from childhood onwards (your foundation, your Native personality, and your Influence personality);
- usage strategies mobilized on a daily basis in your current professional and personal life (your Active personality).

It is this articulation between a stable foundation and an evolving adaptive mode that distinguishes a unified systemic approach from a simple snapshot of fixed traits.

 

A strict boundary: personality functioning, never pathology
One point deserves to be repeated clearly, without any possible ambiguity: PERS6NɅ is a non-clinical and non-diagnostic framework.

Drawing on classifications used by physicians, psychiatrists and psychologists does not mean that PERS6NɅ provides a medical diagnosis or assesses pathology. It describes personality functioning — without reduction, without pathologizing, without placing people into fixed “boxes” or definitive labels — and takes into account each person’s context and level of stress.

PERS6NɅ does not, under any circumstances, replace an assessment by a healthcare professional and must never be used as such.

 

Compliance and quality framework: ISO standards
Beyond its psychological foundations, PERS6NɅ is part of an approach focused on quality, responsibility and professionalism. This approach is not certified, but is aligned with four international standards:
- ISO 9001: Quality management
- ISO 21001: Educational organizations and training
- ISO 45001: Occupational health and safety
- ISO 30414: Human capital reporting
 

This commitment to recognized standards is particularly relevant for public-sector buyers and HR departments subject to compliance requirements: it ensures that the PERS6NɅ approach is not based solely on methodological conviction, but is part of a broader commitment to aligning with quality and risk-management frameworks already recognized by organizations.

 

What this rigor changes in practice
A tool built on these foundations enables uses that fixed tests do not: adapting communication in real time, moving beyond automatic relational patterns under stress, and adjusting management to the context rather than to a box checked once and for all. Where a traditional model improves general understanding, an approach based on these scientific reference points and this Native + Influence / Active architecture makes it possible to act concretely on motivation, time management, stress, decision-making and management — because it captures the dynamics, not just the snapshot.