Hi! I study personality, and I’m interested in questions such as,

  • How is personality expressed in everyday behavior, like language or social media?
  • How can we measure personality without questionnaires?
  • How is personality related to well-being?

Currently, I’m a postdoc at the University of Pennsylvania, working in the Positive Psychology Center.

I also like learning about new ways to analyze and visualize data. On my blog, I write about working with data, R, predictive modeling, and some research-related stuff.

Some background info is below. For more details, please see my CV.


  • Ph.D., Vanderbilt University, 2011
  • M.S., Vanderbilt University, 2007
  • B.A., Case Western Reserve University, 2003


  • Mia, a ferocious Boston Terrier


Park, G., Schwartz, H. A., Eichstaedt, J. C., Kern, M. L., Kosinski, M., Stillwell, D. J., Ungar, L. H., & Seligman, M. E. P. (in press). Automatic personality assessment through social media language. Journal of Personality and Social Psychology.

Sap, M., Park, G., Eichstaedt, J. C., Kern, M. L., Stillwell, D. J., Kosinski, M., Ungar, L. H., & Schwartz, H. A. (2014) Developing age and gender predictive lexica over social media. In Empirical Methods on Natural Language Processing (EMNLP), Doha, Qatar.

Schwartz, H. A., Eichstaedt, J. C., Kern, M. L., Park, G., Sap, M., Stillwell, D. J., Kosinski, M., & Ungar, L. H. (2014). Toward assessing changes in degree of depression through Facebook. In ACL Workshop on Computational Linguistics and Clinical Psychology, Baltimore, MD. pdf

Kern, M. L., Eichstaedt, J. C., Schwartz, H. A., Park, G., Ungar, L. H., Stillwell, D. J., Kosinski, M., Dziurzynski, L., & Seligman, M. E. P. (2014). From “sooo excited!!!” to “so proud”: Using language to study development. Developmental Psychology, 50, 178-188. pdf

Schwartz, H. A., Eichstaedt, J. C., Kern, M. L., Dziurzynski, L., Lucas, R. E., Agrawal, M., Park, G., Lakshmikanth, S. K., Jha, S., Seligman, M. E. P., & Ungar, L. H. (2013). Characterizing geographic variation in well-being using tweets. In Proceedings of the Seventh International AAAI Conference on Weblogs and Social Media (ICWSM). Boston, MA. pdf

Sumner, C., Byers, A., Boochever, R., & Park, G. (2012). Predicting dark triad personality traits from Twitter usage and a linguistic analysis of tweets. In 11th International Conference on Machine Learning and Applications (ICMLA). Boca Raton, FL. pdf

Park, G., Lubinski, D., & Benbow, C. P. (2012). When less is more: Effects of grade skipping on adult STEM productivity among mathematically precocious adolescents. Journal of Educational Psychology, 105, 176-198. pdf

Park, G., Lubinski, D., & Benbow, C. P. (2008). Ability differences among people who have commensurate degrees matter for scientific creativity. Psychological Science, 19, 957-961. pdf

Park, G., Lubinski, D., & Benbow, C. P. (2007). Contrasting intellectual patterns for creativity in the arts and sciences: Tracking intellectually precocious youth over 25 years. Psychological Science, 18, 948-952. pdf