Hi there! I'm Greg. I'm a psychologist by training, software developer by trade, husband, and dad.

I'm building TraitLab, a tool for building self-awareness through scientific personality measures.

TraitLab grew out of my research interests, which centered on two big questions in personality psychology:

  1. How can we measure personality practically and reliably?
  2. How can we use personality assessments to improve our lives?

You can find most of my published research on Google Scholar, but a few representative publications include:


Now and then, I'll share something on my blog when I think of something worth sharing. Here are few of my more popular posts:


I basically avoid social media, but you can reach me at greg@gregpark.io.