Why Companies Test Your Personality
You apply for a position and, between the resume review and the interview, you're asked to take a personality test. It can be surprising, even intimidating. Yet it's become standard practice: according to a study by the Society for Human Resource Management, over 60% of large American companies incorporate some form of behavioral assessment into their hiring process. In France, this trend has accelerated since 2020, driven by the digitalization of recruitment and the realization that technical skills alone don't predict success in a role.
But what exactly are recruiters looking for? How do the most common tests work? And most importantly, how do you prepare without gaming the system?

What Recruiters Are Really Looking For
Contrary to popular belief, personality tests in hiring aren't designed to find the "right" profile. There are no right answers. What recruiters assess is the fit between your personality and three elements:
1. The role. A sales position requires a different profile than a financial analyst role. It's not a matter of competence but of natural preference and comfort in a given environment.
2. The team. A team already composed of dominant profiles doesn't need another leader. It might need a stabilizing, analytical, or unifying profile to function in a balanced way.
3. The company culture. An agile startup and a structured administration don't attract the same temperaments. This isn't a problem -- it's a mutual compatibility filter that protects both parties.
What Tests Don't Measure
Personality tests measure neither intelligence, nor technical competence, nor motivation. They describe behavioral preferences. An I (Influence) profile on the DISC isn't "better" than a C (Conscientiousness) profile -- they're suited to different contexts. Any serious recruiter knows this.
The Most Widely Used Tests
| Test | Primary Use | Result Format | Scientific Validity |
|---|---|---|---|
| DISC | Hiring, team building, management | 4 dimensions (D, I, S, C) | Good (behavioral) |
| RIASEC | Career guidance, internal mobility, reviews | 3-letter code (e.g., ISA) | Very good (Holland) |
| MBTI | Team dialogue, development | 16 types (e.g., INTJ) | Controversial (weak test-retest) |
| Big Five (OCEAN) | Research, in-depth assessment | 5 continuous spectra | Excellent (scientific standard) |
DISC: The Corporate Standard
DISC is one of the most widespread tools in human resources. It classifies behaviors along four dimensions:
- D (Dominance): Results orientation, quick decision-making, natural leadership
- I (Influence): Communication, persuasion, enthusiasm, building connections
- S (Steadiness): Patience, reliability, team spirit, consistency
- C (Conscientiousness): Precision, analysis, respect for standards, rigor
The questionnaire presents you with situations or adjectives and asks you to choose those that most and least apply to you. In 10 to 15 minutes, your DISC profile emerges, with a dominant style and a secondary style.
How the recruiter uses it: They compare your profile to the expected profile for the role. A field sales position benefits from a DI profile (determination + interpersonal skills). An accounting position better suits a CS profile (rigor + stability). A project manager needs a DC profile (leadership + analysis).
But a good recruiter knows that an "atypical" profile can be an asset. A sales rep with a C profile brings rare analytical rigor to a sales team. Profile diversity is what makes a team strong.
Key takeaway: DISC is the most widespread corporate test because it's fast (10-15 minutes), intuitive, and immediately actionable. But its real value isn't in "classifying" you -- it's in revealing how you react under pressure and how you naturally communicate.
RIASEC: The Gold Standard for Career Guidance
RIASEC, developed by psychologist John Holland, is less commonly used in direct hiring but ubiquitous in career guidance and internal mobility. It identifies six professional personality types:
- R (Realistic): Hands-on, practical, enjoys working with tools
- I (Investigative): Curious, analytical, enjoys understanding and solving problems
- A (Artistic): Creative, expressive, values originality and aesthetics
- S (Social): Empathetic, cooperative, enjoys helping and teaching
- E (Enterprising): Ambitious, persuasive, enjoys leading and convincing
- C (Conventional): Organized, methodical, values structures and data
The result is a three-letter code (for example ISA for Investigative-Social-Artistic) that positions you within a universe of compatible careers and work environments.
Corporate use: Career consulting firms use RIASEC for guidance of recent graduates, career transitions, internal mobility, and competency assessments.
MBTI: Popular but Controversial
The Myers-Briggs Type Indicator remains widely used despite scientific criticism of its test-retest reliability. It classifies individuals along four axes (Extraversion/Introversion, Sensing/Intuition, Thinking/Feeling, Judging/Perceiving) to produce 16 types (INTJ, ENFP, etc.).
What to know: MBTI is more of a team dialogue tool than a reliable selection instrument. If you take it during hiring, remember that it's often a discussion starter more than a decision criterion.
The Big Five (OCEAN): The Scientific Standard
The five-factor model (Openness, Conscientiousness, Extraversion, Agreeableness, Neuroticism) is the reference framework in personality psychology. It measures traits on continuous spectra rather than classifying you into a box. It's the most scientifically valid model, but less intuitive than DISC or MBTI for business use.
Key takeaway: If you could only remember one model, it's the Big Five. It's the only one whose scientific validity is unanimously recognized by the psychology community. Other tests (DISC, MBTI) are useful in practice, but the Big Five remains the academic gold standard.
How to Prepare Effectively
Before the Test
Know your profile. Taking a free DISC test or a RIASEC test before the recruitment process lets you understand your results in advance and present them confidently in the interview.
Rest up. Fatigue and stress alter your responses. A test taken in good conditions will better reflect your actual personality.
Don't try to anticipate the "right answers." There aren't any. And serious questionnaires include internal consistency mechanisms that detect manipulation attempts.
During the Test
- Answer spontaneously, without overthinking each question. Your first reaction is often the most authentic.
- Think about your typical behavior, not what you'd like to be or what you think the recruiter wants to hear.
- Don't answer based on the target role. Getting a position that doesn't match your personality will make you unhappy in the medium term.
Key takeaway: The best preparation for a personality test is to answer spontaneously and honestly. Serious questionnaires include internal consistency mechanisms that detect manipulation attempts. Getting a job that doesn't match your personality will make you unhappy in the medium term.
After the Test
- Ask for a debrief. Good recruiters will offer feedback on your results. It's your right.
- Ask questions: "How do you see my profile in this role?" or "Which aspects of my profile best match the team?"
- Prepare concrete examples that illustrate your profile's strengths. A D profile on DISC can discuss a difficult decision they made under pressure. An S profile can describe a long-term project completed successfully through their consistency.
Ethical Considerations
Key takeaway: In France, Article L1221-6 of the Labor Code requires that assessment methods be relevant to the position and transparent to the candidate. You have the right to know which test you'll take, why, and how results will be used.
For Candidates
You have the right to know which test you'll take, why, and how results will be used. In France, Article L1221-6 of the Labor Code requires that assessment methods be relevant to the position and transparent to the candidate.
If a recruiter uses a personality test as the sole decision criterion, that's a red flag. Tests are complementary tools, not verdicts.
For Recruiters
A personality test doesn't predict performance. It illuminates behavioral preferences. A D profile isn't automatically a better manager. An I profile isn't automatically a better salesperson. Context, experience, and motivation matter just as much, if not more.
Beyond Hiring
The most advanced companies use personality tests throughout the employee journey:
- Onboarding: Adapting the integration process to the new hire's profile
- Team building: Understanding team dynamics and anticipating tensions
- Management: Adapting leadership style to each team member's profile
- Career development: Guiding promotions and training toward roles that match the person's temperament
A Tool, Not a Verdict
Whether you're a candidate or a recruiter, remember one rule: a personality test is a dialogue tool, not a judgment. It opens a conversation about operating modes, preferences, and needs. It closes no doors.
Prepare by discovering your DISC profile with our free test or explore your professional affinities with our RIASEC test. Arriving at an interview knowing your profile turns a stressful step into a strategic advantage.