Plain writing on personality, with the receipts.
Negotiation Styles by Big Five Trait
Negotiation research shows which traits help and which hurt — and which hurts the most when you do not see it coming. A practical guide by trait
8 min readCareer
Neuroticism and Mental Health: What the Research Says
Neuroticism is one of the strongest personality predictors of anxiety and depression. The correlation is real. The story is more nuanced than the headlines
8 min readTraits
Neurotic: Definition, Meaning, and What Neuroticism Actually Measures
Neurotic means quick to worry and slow to settle. Psychology measures the same thing as Neuroticism: a normal-range Big Five dimension with six facets, and not a disorder.
9 min readBig Five
Does Openness Actually Predict Creativity? What the Research Shows
Openness is the best personality predictor of creative output — but the effect is smaller than pop articles suggest. Here is what the meta-analyses actually show
8 min readTraits
Why Openness Predicts Political Views More Than IQ Does
Across dozens of studies, Openness predicts political orientation better than intelligence, income, or education. Here is what the research actually shows
8 min readTraits
Open-Minded: Meaning, Definition, and the Trait Psychologists Measure
Open-minded means willing to take in what you have not already accepted. The Big Five trait behind the word is six things, not one, and here is what each of them measures.
9 min readBig Five
Big Five Patterns Couples Therapists Watch For
Couples therapists know which trait gaps tend to produce which fights. Here are the four patterns research has tied to relationship conflict and what to do about them
8 min readRelationships
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