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PSYCHOLOGY

PSYCHOLOGY

People on the internet are always dunking on the Meyers-Briggs quiz, calling it pseudoscience and meaningless and laughing at anyone that believes in it. Typically, people propose to use the Big-5 test instead. Thing is, those two tests are almost the same thing. The main difference is if/how you discretize the axes. Thus, I proposed a new system to give Myers-Briggs results with a finer discretization.

  • To underline this point, I went so far as to create a no-nonsense MBTI quiz. Beyond giving a finer discretization, I think this might be the fastest MBTI quiz on the internet, just due to the interface.

I’m also interested in the relative advantages of different personalities. I naively assumed that all personalities are equally “good”, just in different ways. To my surprise, the data suggests that one particular personality is better in almost every way.


I’ve done a couple of obsessive investigations of topics related to psychology:

  1. Is the “general factor” of intelligence a real thing?
  2. Is the “gender-equality paradox” a real thing?

(In both cases, the answer is “probably, but it’s not as consequential as some people think”).


A particular interest is the impact of evolution on explaining the world around us. Given this, I’ve tried to understand two different seeming contradictions:

  1. Why would genetic evolution favor the existence of homosexuality while cultural evolution favors social norms against homosexuality? My answer is that I think those trends actually reinforce each other.

  2. Why is it that you’re super motivated to marry someone hot, while your parents care so much less about this? My answer is that there’s many possible explanations. (See also this update/correction.)

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Taste games

or why I avoid midrange beer

I bet you like it when beautiful people laugh at your jokes. And I bet you like the taste of sugar. I sure do. But what about camping or dubstep or chain restaurants or installation art? What about blue cheese...

Your tastes are a point in space

a 2d space

Here’s something that seems weird: More educated people are more often Democrats. Richer people are more often Republicans. Richer people tend to be more educated. Don’t believe me? Here, I made some figures. (All data comes from the General Social...

Bourdieu's theory of taste: a grumbling abrégé

what the stuff we like says about us

I recently noticed that when I buy beer, I sometimes get Belgian Trappist Quintupel. And I sometimes get American Fermented Value Product. But never Blue Moon or Sam Adams or Peroni or Becks or Pilsner Urquell. Why? I guess I...

You, your parents, and the hotness of who you marry

Why do you disagree with your parents about the importance of looks?

When you look for someone to marry, you’ll care about many things: Are they smart? Healthy? Kind? Funny? Educated? Employed? And are they, like, wicked hot?

Homosexuality and evolution

Why does evolution do what it does? And if you're a sentient being created by it, what should you think about that?

Here are two things that seem to be true:

General factors of intelligence and physical fitness

A review of correlations between human performance on physical and mental tasks, plus a description of how factor analysis is like a cigar

Is there a general factor of intelligence?

Does the gender-equality paradox actually exist?

Some claim that more feminist countries have fewer women in STEM. Others say this is nonsense. Who is right?

The gender-equality paradox is the (disputed) idea that countries with more gender equality have fewer women in STEM careers. While there’s lots of debate in the scientific literature about the causal implications of this paradox, there’s no agreement about a...

Are some personalities just better?

People with the same big five personality types tend to be more happy, successful, intelligent, creative, and popular. Why aren't there more tradeoffs?

I don't know if you like parties. I don't know if you're organized or punctual. But I bet you don't like rotting smells or long swims in freezing water. That is to say: People are different, but only in certain...

In defense of Myers-Briggs

examines claims that the big five personality traits is more scientifically valid than the myers briggs personality indicator

The Myers-Briggs Personality Indicator (MBTI) gets a lot of scorn. It would seem that the the MBTI is nonsense, but the Big Five is a real, scientifically valid test. To be sure, there's nothing wrong with the Big Five. But...