Plain writing on personality, with the receipts.
What Hiring Managers Should (and Shouldn't) Use Personality Tests For
Personality tests can predict job performance better than interviews — but only in narrow ways, and they create real legal exposure when misused
9 min readCareer
How to Read the Personality of Your Job Interviewer (and Yourself)
Interviewers have personalities too — and reading them in real time can change how you answer. A research-grounded field guide for both sides of the table
8 min readCareer
What Your Kid's Personality Looks Like in Big Five Terms
Childhood temperament predicts adult personality more than parents expect — and less than personality books claim. Here is what the research actually shows
8 min readSelf-awareness
Personality Doesn't Stop Changing at 30 — Here's What Actually Shifts
The old idea that personality is fixed by age 30 is not what the data shows. Roberts, Walton, and Viechtbauer's meta-analysis tracked what changes and when
9 min readTraits
How Much of Personality Is Genetic? The Twin-Study Answer
Decades of twin and adoption studies converge on the same number: roughly half of personality differences trace back to genes. Here is what that means in practice
8 min readScience
5 Personality Test Myths the Research Quietly Killed
Five widely repeated claims about personality tests that the research does not actually support — from type stability to the idea that tests measure who you are
8 min readMBTI
A Short History of Personality Testing: From Galton to Big Five
How personality testing went from Victorian-era word-counting to the Big Five — and why MBTI took over the popular market while researchers moved elsewhere
8 min readScience
Can You Lower Your Neuroticism? What Actually Works
Neuroticism is moderately heritable but not fixed. CBT, exercise, and deliberate practice all move the needle. Here is what the research says and what it does not
8 min readTraits
What Your Big Five Score Actually Means: A Plain-English Guide
Five percentile scores. No labels. Here is what each Big Five trait measures, what high and low scores tend to look like, and what they can predict.
9 min readBig Five
Why Personality Tests Are Having a Moment (Again)
The MBTI started in corporate training and went viral on TikTok. Here is what the cultural pattern actually tells us about why personality tests keep coming back
7 min readMBTI
Why Your Personality Scores at Work May Differ From Home
Trait expression varies hour to hour. Research on density distributions shows how much of your personality is context, not core — and what stays stable anyway
8 min readSelf-awareness