Your personality doesn’t change – and that’s a good thing
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Thursday 23 April 2026
People used to believe that big life events, like having a baby or getting a serious illness, changed a person's character or personality. However, recent studies show that personality is actually very stable and not shaped by these events. People tend to have a fixed personality throughout their lives, which is why understanding their traits is valuable. This is particularly important for employers who want to learn about their employees’ personalities.
What is a personality test?
Personality tests are designed to reveal the character of an individual, or, in the case of business, of a future employee. This is because a person's personality plays a major role in future employment behavior. A good personality test may give employers insight into the personality profile of the candidate, helping them decide whether someone is the right fit for the job. The test also saves an immense amount of time, effort, and money.
Personality tests continue to gain prominence. Their popularity has actually increased by almost 63% since 2001. Virtually every major company is taking advantage of the valuable insight bestowed by administering such tests.
Personality is stable
Personality tends to be stable—it doesn’t change overnight. That’s exactly why tools like the 4 color personality test are so valuable.The insights you gain from a personality test usually stay relevant for years. In most cases, you only need to take it once to get a clear picture of how someone naturally works, communicates, and interacts with others. For companies, that’s incredibly useful. It helps you quickly see if someone’s a good fit for a role, a team, or even ready for a new challenge.
The Big Five personality test
The most widely used personality test by employers is the Big Five personality test. It was developed using the theory that human personality is made up of 5 character traits (hence, the Big Five).
Together, these traits form the main component of the candidate's personality. The Big Five is a very valid and reliable instrument that, by using innovative techniques, can also detect socially desirable responses and dishonest answers.
Predicting Sales Performance with a Personality Test
A well-designed personality test can help predict sales performance by identifying the traits that consistently drive success in commercial roles. Research shows that characteristics such as extraversion, resilience, goal orientation, and persuasiveness are strongly linked to higher sales outcomes. In particular, the study by Sitser et al. demonstrates that combining validated personality dimensions with job-specific competencies provides a reliable indication of future sales results. By mapping these traits to the demands of a sales role, organizations can make more accurate hiring and development decisions, reduce turnover, and improve overall sales effectiveness. This is why many organizations integrate a personality test into a broader sales assessment to maximize predictive accuracy.
Taking a personality test
Looking for long-term, reliable insight into a candidate or employee’s personality? The 16 personality test is a great place to start.
The Bridge Personality is a tool that helps recruiters, HR professionals, and business owners understand people better. It is based on Jung's ideas and the Big Five personality traits. The tool asks clear and meaningful questions and checks if the answers are honest. This makes it easier to understand someone’s personality, helping you make better choices when hiring, developing, or supporting your team..
Want to know more about personality tests? Contact the professionals at TestGroup directly. If you decide to order The Bridge Personality test, the candidate can start within just 30 minutes.
Video: The Bridge Personality
A personality test helps you understand how someone works, communicates, and where their strengths lie. The Bridge Personality has been a trusted tool for over 15 years—used by companies worldwide for hiring and development. Use it per candidate or manage everything yourself with an account on TestGroup’s platform. Simple and flexible.
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What does it mean that personality does not change?
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Research shows that personality is relatively stable over time and does not change significantly due to life events. This stability means that once you understand someone’s personality, those insights remain relevant for years.
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Why is a stable personality important for organizations?
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Because personality is stable, organizations can rely on personality data when making hiring and development decisions. It gives a consistent view of how someone behaves, communicates, and performs at work, which helps reduce hiring risks and improve long-term fit.
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How does a personality test support recruitment?
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A personality test provides insight into how a candidate will behave in a work environment. Employers use this information to assess cultural fit, team dynamics, and role suitability, making the recruitment process more objective and efficient.
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Why is the Big Five model often used in personality tests?
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The Big Five is one of the most scientifically validated personality models and measures five core traits that together describe human behavior. This makes it highly reliable for predicting workplace behavior and performance.
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How often should someone take a personality test?
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Because personality is stable, most people only need to take a high-quality personality test once. The results remain useful for years and can be applied across multiple roles, teams, and development situations.
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Is a personality test enough to make hiring decisions?
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A personality test is a powerful tool, but it works best as part of a broader online assessment. Combining personality insights with cognitive ability tests or a sales assessment leads to more accurate and complete hiring decisions.
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Is The Bridge Personality comparable to MBTI?
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The Bridge Personality can be seen as a strong alternative to MBTI. While MBTI focuses on types, The Bridge Personality combines Big Five traits with 16 Jung Types and additional competency insights, offering a more detailed and scientifically grounded view of behavior in the workplace.
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