MBTI Insights: Personality Psychology in Depth
Essays on personality psychology and assessment methodology — what four letters can and cannot tell you.
MBTI typestype comparisons
INFJ vs INFP: Why the J/P Letter Cannot Answer That
The two types use the same four functions with every attitude flipped — and the letter meant to separate them measures the outside, not the engine.
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The Barnum Effect: Why Vague Personality Descriptions Feel Uniquely True
In 1948, students rated an identical, generic personality profile as highly accurate. What the Barnum effect means for MBTI — and how evidence-based typing fights back.
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INTP vs INTJ: How to Tell Which One You Actually Are
Both are quiet, logical and obsessed with ideas — but one closes loops and the other opens them. Why the J/P letter fails on this pair, and the signals that settle it.
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