A Quick and Dirty Guide to Validity & Reliability

Choosing the right assessment for selecting or developing employees can make or break the success of a talent initiative. Why bother using assessments that don’t predict performance, or that fail to resonate with your business leaders? When deciding on the right assessment for your valuable talent, pay attention to the scientific rigor with which the […]
Potential Is Not Performance

The future leadership of your organisation matters. Think about it. Who would be ready to lead if your CEO were to leave? Organisations naturally want their top employees in a high-potential program, but identification processes based on performance aren’t working. You’d think that close to 100% of participants in high-potential programs would be above-average leaders, […]
The Personality of Evil: Authoritarian Leaders and the Dark Side of Personality

The dark side of personality is aptly named. But is there such a thing as an evil personality? During World War II, psychiatrists wondered whether the authoritarian leaders of the Nazi regime shared any personality characteristics that would explain their criminal behaviour. On episode 146 of The Science of Personality, cohosts Ryne Sherman, PhD, and Blake Loepp spoke […]
Why Uniqueness Matters: Personality and Individuality

Nobody else has your personality. Unique individuality is the concept that no one ever has been, is, or will be precisely like you. It’s also what differentiates human intelligence from artificial intelligence. But uniqueness is more than a feel-good concept. When we measure individuality with personality assessments, we can predict performance, empower behavioural change, and […]
Understanding the Hogan Competency Model: The Science Behind Great Leadership

Building effective, future‑ready leaders starts with understanding what great looks like — and that’s exactly what the Hogan Competency Model (HCM) provides. Backed by decades of global research and integrated into PBC’s evidence‑based leadership solutions, the HCM helps organisations identify, measure, and develop the behaviours that drive real performance. What Is the Hogan Competency […]
PBC Webinar: Inside the Best (And Worst) Teams: What Really Drives Performance
Join us for our upcoming webinar Inside the Best (and Worst) Teams: What Really Drives Performance as we unpack what truly drives sustained, value‑adding team performance. Drawing on the latest research and powerful real‑world examples, we will explore why talent alone isn’t enough—and how team design, human‑centric capabilities, and the right conditions can dramatically lift […]
The 2025 Derailers of the Year

According to time-honoured tradition, the cohosts of The Science of Personality podcast present the 2025 derailers of the year: 11 newsworthy people and events of the year corresponding to the 11 scales on the Hogan Development Survey (HDS). Also known as the dark-side assessment, the HDS measures personality characteristics that are counterproductive when left unmanaged. Last year’s […]
Upcoming Perth Hogan 360 & HPTA Certification Workshops
We’re delighted to announce that Sharon Ardley, Head of Practice at Peter Berry Consultancy, will be at the Hilton Parmelia Perth on the 10th of December to facilitate Hogan 360 and High Performing Team Assessment Certification Workshops. We welcome certified users to join and refresh their knowledge of the tools and interpretation skills. Spaces are limited, please register for the complimentary workshops below. […]
What Really Sets the Best CEOs Apart? Insights from the Top and Bottom 10%

Ever wondered what makes a truly great CEO? Or, on the flip side, what holds the worst ones back? Thanks to a treasure trove of Hogan 360 data—spanning over 29,000 managers and 1,000 CEOs—Peter Berry Consultancy has some fascinating answers. The Surprising Strengths (and Weaknesses) of CEOs Let’s start with the numbers. When you look […]
The Leader’s Guide to Strategic Team Building: More Than Just an Away Day

We’ve all been there. Part of a team that just clicks—energised, motivated, and thriving. That feeling is positively contagious. We’ve also likely experienced the opposite: a dysfunctional, draining, or even toxic team environment. The difference between these two scenarios often comes down to one critical factor: the leader. Effective team building isn’t about trust falls […]