A former colleague of mine once hired a senior account manager based almost entirely on vibes. The candidate was charming, polished, gave textbook answers in the interview, and had a resume that read like it was written by a career coach. Three months later, the new hire had alienated half the client roster, ghosted on two quarterly reviews, and described themselves in a team meeting as "not really a details person."
The resume was flawless. The interview was flawless. The fit was a disaster.
This is the gap that personality assessment software is designed to close by giving hiring teams a structured, data-backed signal on behavioral traits, work styles, and temperament before the offer goes out. And when used well, these tools don't just help you hire better. They help your existing teams communicate, collaborate, and develop.
Here's a guide to the best personality assessment tools on the market, what separates them, and how to build assessments into your hiring and development process without overcomplicating things.
What is personality assessment software?
Personality assessment software refers to digital tools that measure behavioral traits, work styles, cognitive tendencies, and temperament to help predict how a person will perform in a specific role or team environment. Unlike skills testing, which evaluates whether a candidate can do something, personality assessments evaluate how they're likely to approach their work: how they communicate under pressure, how they handle ambiguity, whether they thrive in collaborative settings or independent ones.
These tools are used across both sides of the employee lifecycle. In hiring, they add a structured signal to the screening process. In talent development, they help employees and managers understand working styles, identify blind spots, and build stronger team dynamics.
Why HR teams use personality tests in hiring
Resumes tell you what someone has done. Interviews tell you what they want you to hear. Personality assessments add a third signal. It's one that's standardized, repeatable, and harder to game. Here's why more HR teams are building them into their process.
Predict job performance before the offer
Research in organizational psychology consistently shows that certain personality traits correlate with success in specific roles. Conscientiousness, for example, is one of the strongest predictors of job performance across nearly every role type. For sales positions, extraversion and resilience tend to matter more. Personality assessments let you match candidates to the traits that actually predict success in the job — not just the traits that make someone good at interviewing.
Reduce turnover and improve retention
When someone is a poor fit for a role or a team's culture, they tend to disengage quickly — and leave. Personality assessments help identify alignment between a candidate's natural work style and the environment they're stepping into. Better fit leads to higher engagement, which leads to longer tenure. And given that replacing an employee can cost anywhere from 50% to 200% of their annual salary, the math is straightforward.
Build stronger teams through self-awareness
Personality data isn't just useful at the point of hire. When teams share and discuss their assessment results, it creates a common language for how people prefer to work, communicate, and handle conflict. A team that understands one member is high on analytical thinking and another is high on spontaneity can plan around those differences instead of being surprised by them.
Create objective and consistent hiring criteria
Unstructured interviews are notoriously unreliable: different interviewers weigh different factors, and unconscious bias creeps in. Standardized personality assessments give every candidate the same experience and produce comparable, quantifiable results. This doesn't eliminate bias entirely, but it adds a layer of consistency that gut-feel interviews simply can't match.
Types of personality tests used in hiring
Several validated frameworks power the assessments you'll find in the tools below. Each measures different dimensions of personality, and the right framework depends on what you're trying to learn about candidates.
DISC assessment
DISC measures four behavioral dimensions: Dominance, Influence, Steadiness, and Conscientiousness. It's designed to be practical and workplace-oriented, focusing on how people respond to challenges, influence others, maintain pace, and follow rules. DISC is commonly used for sales teams and leadership development because it maps directly to communication and work styles.
Big Five personality model
Also known as OCEAN, the Big Five measures openness, conscientiousness, extraversion, agreeableness, and neuroticism. It's considered the most scientifically validated personality framework in organizational psychology, backed by decades of peer-reviewed research. The Big Five is particularly useful for hiring because its dimensions have well-documented correlations with job performance.
Myers-Briggs Type Indicator
The MBTI categorizes people into 16 personality types based on four dichotomies: extraversion vs. introversion, sensing vs. intuition, thinking vs. feeling, and judging vs. perceiving. It's one of the most widely recognized personality frameworks, though its use in hiring is debated — test-retest reliability is lower than the Big Five, and its categorical (rather than spectrum-based) approach can oversimplify personality.
Enneagram
The Enneagram identifies nine personality types based on core motivations, fears, and desires. It's more commonly used in team development and coaching than in hiring, because it focuses on why people behave the way they do rather than predicting specific workplace behaviors. Teams often use it to build empathy and improve communication.
Predictive Index Behavioral Assessment
The Predictive Index (PI) is a workplace-specific assessment designed to measure four behavioral drives: dominance, extraversion, patience, and formality. Unlike general personality tests, PI was built specifically for hiring and talent management, and it's designed to map assessment results directly to job requirements. This makes it particularly actionable for hiring managers who want clear, role-specific recommendations.
Personality assessment software comparison table
Top personality assessment software for HR teams
Here are 5 personality assessment tools worth evaluating, each with a different strength depending on your team size, hiring volume, and use case.
Truffle
- What it does: A candidate screening platform that lets teams combine personality assessments with async video interviews and AI-powered resume review — so you're layering multiple signals rather than relying on personality data alone.
- Best for: Teams that want a complete screening workflow (not just a standalone assessment tool) that connects personality, communication, and credentials in one place.
- Pricing: Free trial available. Paid plans start at $99 per month and offer additional screening volume and features.
- Integrations: Ashby, Breezy, Indeed, Zapier, and API access for custom workflows.
Criteria Corp
- What it does: Combines cognitive aptitude tests with personality assessments (including the Big Five-based Emotify and the workplace-oriented Employee Personality Profile) to give a multi-dimensional view of candidates.
- Best for: Teams that want cognitive and personality data in one platform.
- Pricing: Per-assessment pricing; contact for a quote. Plans scale with volume.
- Integrations: Greenhouse, Lever, iCIMS, and 30+ ATS platforms.
The Predictive Index
- What it does: Provides behavioral and cognitive assessments designed for workforce planning, with tools to map assessment results to specific job profiles and team dynamics.
- Best for: Mid-market and enterprise teams building talent strategies around behavioral data.
- Pricing: Annual subscription; pricing varies by company size. Contact for a quote.
- Integrations: Greenhouse, Lever, Workday, and other major ATS platforms.
TestGorilla
- What it does: Offers a library of 400+ pre-employment tests, including personality assessments (Big Five, Enneagram, DISC, 16 Types), cognitive ability tests, and role-specific skills tests — all in one platform.
- Best for: Teams that want to build custom assessment batteries combining personality, skills, and cognitive tests.
- Pricing: Free plan available with limited tests. Paid plans start at $75/month.
- Integrations: Greenhouse, Lever, SmartRecruiters, Zapier, and others.
SHL
- What it does: Delivers enterprise-grade personality, behavioral, and cognitive assessments with global benchmarking data across industries and regions.
- Best for: Large enterprises hiring globally that need localized assessments and normative data across markets.
- Pricing: Enterprise pricing; contact for a custom quote.
- Integrations: SAP SuccessFactors, Workday, Oracle, Taleo, and other enterprise ATS platforms.
How to choose the right personality assessment tool
Not every tool on this list is right for every team. Here's what to evaluate before you commit.
Scientific validity and reliability
The single most important criterion for any personality assessment is whether it actually predicts what it claims to predict. Look for tools backed by peer-reviewed research, with published data on test-retest reliability (do people get consistent results when they retake the test?) and criterion validity (do scores correlate with actual job performance?). You'll also want to ask about adverse impact data — whether the assessment disproportionately screens out any protected group — which matters for EEOC compliance.
Ease of use for candidates and hiring teams
The best assessment is useless if candidates abandon it halfway through. Candidate experience matters: look for assessments that are mobile-friendly, take 15 minutes or less, and communicate clearly what the candidate should expect. On the hiring team side, reports should be easy to interpret without requiring a psychology degree or a certification course. If your recruiters need extensive training just to read the results, adoption will be low.
ATS and workflow integrations
Your assessment tool should connect to the systems your team already uses. If you're on Greenhouse, Lever, Ashby, or another ATS, check that results flow directly into candidate profiles — not into a separate dashboard your team has to remember to check. Platforms that support Zapier or API connections give you more flexibility, especially if your tech stack is custom. Tools like Truffle are designed to plug into your existing hiring process so assessment results sit alongside video interviews and resume reviews in one place.
Pricing and scalability
Assessment tools use a range of pricing models: per-assessment (you pay each time a candidate takes a test), per-seat (you pay based on how many team members have access), or unlimited (flat rate regardless of volume). Per-assessment pricing makes sense for low-volume hiring, but it can become expensive quickly at scale. If you're hiring dozens or hundreds of people per quarter, look for tools with volume discounts or flat-rate plans that won't penalize you for growing.
Compliance and bias prevention
EEOC guidelines require that any selection tool used in hiring be job-related and consistent with business necessity. This means your assessment should measure traits that are actually relevant to the role — and you should be able to demonstrate that connection if challenged. Avoid assessments that directly or indirectly screen on protected characteristics (race, gender, religion, disability). Ask vendors for their adverse impact data, and look for tools that have been reviewed by an industrial-organizational psychologist.
How to implement personality assessment software in your hiring process
Adding assessments to your hiring workflow doesn't need to be a six-month project. Here's how to do it well.
1. Define the role and success criteria
Before you choose an assessment, identify which traits actually matter for the specific role. What does success look like in the first six months? What behavioral characteristics do your top performers in this role share? This step prevents you from defaulting to a generic assessment and hoping for the best. (Here's how it works in Truffle.)
2. Select the assessment type
Match the framework to the competencies you're measuring. If you need to predict general job performance, the Big Five has the strongest research base. If you're hiring for a sales role and want to understand communication style, DISC is a natural fit. If you're building out a leadership pipeline, Hogan's three-lens approach (bright side, dark side, values) offers depth that simpler frameworks don't.
3. Integrate with your ATS or screening workflow
Connect the assessment tool to your existing systems so results flow into candidate profiles automatically. This is where the workflow either holds together or falls apart — if results live in a separate tool, your team will forget to check them. Platforms like Truffle let you combine assessments with async video interviews and resume review in a single screening step, so everything arrives in one place.
4. Communicate expectations to candidates
Tell candidates what to expect before they take the assessment. How long will it take? Is there a right or wrong answer? How will results be used in the hiring decision? Transparency here improves candidate experience and reduces drop-off. It also sets the expectation that your hiring process is thoughtful and structured — which is a signal to strong candidates that your team takes hiring seriously.
5. Review results alongside other evidence
This is the step most teams skip or shortchange. Personality scores should never be the sole basis for a hiring decision. They're one input alongside resume review, interview performance, skills tests, and reference checks. The most effective screening processes layer multiple signals — because no single data point tells the whole story. Look at how assessment results align (or conflict) with what you've learned from other screening stages.
6. Train hiring managers on interpretation
Assessment reports are only useful if the people reading them understand what the scores mean — and, just as importantly, what they don't mean. A candidate who scores low on extraversion isn't necessarily bad at sales; they might just be a different kind of salesperson. Make sure your hiring managers know how to use assessment data as one factor in a holistic decision, not as a pass/fail gate.
How to use personality assessments for talent development
Personality assessments aren't just for hiring. Some of the highest-impact use cases happen after someone is already on the team.
Identify strengths and growth areas
Assessments surface patterns that are hard to see from the inside. An employee might not realize that their tendency toward high conscientiousness is both their greatest strength (reliability, attention to detail) and a potential blind spot (difficulty delegating, perfectionism that slows output). Development-focused assessments give employees and their managers a shared framework for talking about these patterns constructively.
Inform coaching and development plans
When managers understand their direct reports' personality profiles, they can tailor coaching to be more effective. A highly analytical employee might respond better to data-driven feedback, while a more relationship-oriented team member might need their contributions acknowledged before diving into areas for improvement. Assessment data helps managers meet people where they are instead of defaulting to a one-size-fits-all coaching style.
Improve team dynamics and communication
When everyone on a team shares their assessment results, it creates a common vocabulary for differences. Instead of "Sarah always shoots down ideas in brainstorms," the conversation becomes "Sarah leads with analytical thinking — she's stress-testing ideas, not dismissing them." This kind of shared understanding reduces friction and helps teams work with their differences rather than around them.
Build a complete candidate screening process with Truffle
Personality tests reveal something valuable: How a candidate is wired, what motivates them, how they're likely to show up day-to-day. But temperament is only one piece of the picture. A candidate who scores perfectly on a personality assessment might still struggle to communicate their ideas clearly, or have credentials that don't hold up under review.
That's why the most effective screening processes layer multiple signals. Personality assessments tell you about temperament. Async video interviews show you how someone thinks and communicates in real time. Resume review confirms credentials and experience. Each layer compounds the signal and reduces the risk that any single data point leads you astray.
Truffle is built for exactly this kind of multi-signal screening. You can combine personality assessments with async video interviews and AI-powered resume review in a single workflow — then share structured scorecards with your hiring team so everyone is evaluating candidates against the same criteria. It integrates with the tools you already use (Ashby, Breezy, Indeed, Zapier), and the whole thing takes minutes to set up, not weeks.
Try Truffle free or schedule a demo to see how it works.
FAQs about personality assessment software
What are the top five personality assessments used in hiring?
The most common personality tests in hiring are DISC, the Big Five (OCEAN), the Predictive Index Behavioral Assessment, Hogan Assessments, and the Caliper Profile — each measuring different traits relevant to workplace performance. The Big Five has the strongest academic research base, while DISC and PI are more commonly used for their practical, workplace-specific insights.
Can you take the Myers-Briggs personality test for free?
Free versions of Myers-Briggs-style assessments are available on sites like 16Personalities and Truity, though the official MBTI requires a certified administrator and a fee. The free alternatives use similar frameworks and can give you a useful starting point, but they aren't the same validated instrument as the official assessment.
What is the most widely used personality assessment in the workplace?
The Big Five personality model is considered the most scientifically validated and widely used framework in organizational psychology, backed by decades of peer-reviewed research. That said, DISC is more commonly used in sales and leadership contexts because its results map directly to communication styles and workplace behavior.
Are personality tests legal to use in hiring?
Personality tests are legal in most jurisdictions as long as they are validated, job-related, and do not disproportionately screen out protected groups under EEOC guidelines. The key is that the assessment must measure traits relevant to the role — and you should be able to demonstrate that connection if challenged. Working with assessments that publish their adverse impact data helps protect your organization.
Can candidates fake or game personality assessments?
Candidates can sometimes skew responses toward what they think employers want to hear, which is a well-documented limitation of self-report assessments. Well-designed tools address this with built-in validity scales that flag inconsistent or socially desirable response patterns. This is also why assessment results should always be combined with other screening evidence — a strong video interview or reference check can confirm (or contradict) what the personality data suggests.
How accurate are AI-powered personality assessments?
AI-powered personality tools can surface patterns quickly and at scale, but accuracy depends entirely on the underlying model's validation. Some tools use AI to analyze language patterns, facial expressions, or public data to infer personality traits — and the science behind these methods varies widely. Look for tools that disclose their methodology, publish validation studies, and show correlation with actual job performance data rather than just self-reported personality scores.
