- Michal Kosinski, Stanford Graduate School of Business
- Wu Youyou, Univ. of Cambridge; Northwestern Univ.
- Andrew Schwartz, Stony Brook Univ.
- David Stillwell, Univ. of Cambridge
A classic finding in social psychology is that friends and spouses tend to be similar in a broad range of characteristics (e.g. age, race, religion). No such effect have been found for personality. Reference group effects inherent in typical measures may be to blame. Using two behavior-based measures which infer personality from Facebook profile data (N=46,483), we find evidence for similarity.