Why Psychometric Testing is a Game-Changer for Recruitment

Melody Jaimon • 13 February 2025

Smarter Hiring Decisions with Psychometric Testing

When it comes to hiring the right person for the role and organisation, making data-driven decisions is critical. Research consistently shows that psychometric testing for recruitment provides objective, predictive insights into a candidate’s potential for success. A recent National Bureau of Economic Research (NBER) study further reinforces this, revealing that companies using psychometric assessments make better hiring decisions and experience lower turnover rates.   


Key Findings from the NBER Study

The study examined 15 companies hiring entry-level service sector employees and involved a massive 300,000 hires and 555 hiring managers. It assessed candidates based on cognitive ability, personality traits, and technical skills, offering a comprehensive view of each applicant’s strengths.

  • Employees hired with psychometric testing stayed 15% longer in their roles compared to those hired without testing.
  • The further hiring managers deviated from test recommendations, the worse their hiring decisions became.
  • The data showed that psychometric assessments were more accurate at identifying strong candidates than hiring managers relying solely on intuition.


Why This Study Matters

This research carries significant weight due to its prestigious backing. The NBER is the largest economics research organisation in the U.S., with 22 Nobel Prize winners among its members. Researchers from Harvard, Yale, and the University of Toronto contributed to the study, adding further credibility.


Psychometric Testing vs. Traditional Hiring Methods 

The findings of this study align with past research, including the influential meta-analysis by Hunter and Schmidt, which demonstrated that cognitive aptitude tests are stronger predictors of job performance than interviews, work experience, and education level.


Hiring managers often rely on gut instinct, but research proves that human bias impacts hiring decisions. While interviews and resumes can provide valuable information, they are inherently subjective. Psychometric testing offers a structured, data-driven approach to hiring that reduces bias and enhances decision-making.

Balancing Intuition with Data

While psychometric testing for recruitment is a powerful tool, it should not replace human judgment entirely. Instead, it should be a key component of a comprehensive hiring strategy that also includes structured interviews, skills assessments, and cultural fit evaluations.


The Bottom Line: Why Businesses Should Use Psychometric Testing

Incorporating psychometric assessments into your hiring process can lead to:
✅ Stronger, data-backed hiring decisions
✅ Reduced employee turnover
✅ More accurate candidate evaluations
✅ Lower hiring biases and improved workplace diversity


With research confirming its effectiveness, psychometric testing for recruitment is an essential strategy for companies looking to build high-performing teams.


Fermion specialises in psychometric testing for recruitment. Please contact Fermion to discuss how the Typing and/or Data Entry tests, or any other psychometric test, can help with your recruitment decisions.

About the Author:

Christopher Apps is an Organisational Psychologist and the owner of Fermion. He stays updated on the latest psychology research and shares evidence-based insights.


The focus of Fermion is "Psychometric Testing for Recruitment" and "Recruitment to Retention: How to select good staff and keep them". If you would like to learn how to select good staff and keep them, please feel free to contact us at Fermion.


“Learn from the mistakes of others. You can’t live long enough to make them all yourself.”

Eleanor Roosevelt.

Recent Posts

Business meeting in a modern conference room, with silhouetted people around a long table at sunset.
by Chris Apps 26 May 2026
Poor hiring decisions do more than create mishires. Without a clear process, they can damage trust, invite claims of bias and expose the business.
Notebook page reading “Role Expectations” with a pen on a wooden desk
by Chris Apps 18 May 2026
Candidates need the truth about the role, the culture and the manager. Honest recruitment reduces mismatched expectations and costly mishires before they start.
Two people in business attire shaking hands across a white desk with paperwork and a keyboard.
by Chris Apps 12 May 2026
Resumes, interviews and reference checks all contain "noise" and error. Discover how stronger recruitment systems improve hiring accuracy and reduce mishires.
Man at desk with coffee and snacks, balancing a pen between two wire fixtures while looking focused
by Chris Apps 5 May 2026
Difficult employees rarely appear overnight. Discover how recruitment decisions influence behaviour and what you can do early to avoid costly mistakes.
Handshake over a digital network with glowing data icons and charts in blue tones
by Chris Apps 28 April 2026
Hiring decisions feel rational, but they often aren't. Discover how emotion and AI shape candidate experience and why removing the human touch creates costly mistakes.
Two people in a meeting, smiling across a table with a laptop and papers.
by Chris Apps 22 April 2026
Hiring decisions often start with instinct, not evidence. Discover why confident choices can go wrong and how internal talent is frequently undervalued.
Hands checking items on a clipboard checklist with a red pen
by Chris Apps 20 April 2026
Hiring mistakes often start before the interview. Use a pre-interview checklist to improve structure, reduce bias, and make more effective hiring decisions.
Business meeting with presenter showing charts on a screen in a bright office conference room
by Chris Apps 15 April 2026
Better hiring is not guesswork. Discover how structured assessments and smarter processes will help you identify high performers and improve business outcomes.
Man in glasses faces a glowing digital circuit profile on a dark background
by Chris Apps 7 April 2026
Generative AI is making candidates look the same. Learn how assessments provide objective data and improve hiring decisions in an AI-driven recruitment landscape.
Three seated people holding papers and a clipboard in a waiting room
by Chris Apps 1 April 2026
A bad hiring process lets poor candidates through. Learn how screening and psychometric testing for recruitment and significantly improves selection decisions.
Show More