Jennifer A. Theiss, Ph.D. studies the role of interpersonal communication in negotiating and maintaining romantic relationships. Her research focuses on factors that can affect communication in relationships, such as uncertainty and interference. She has also examined how conflict, jealousy, and sexual intimacy can affect communication in a relationship. 

Theiss's research has been published in Human Communication Research, Communication Quarterly, Personal Relationships, and other scholarly journals. She has also presented papers to the National Communication Association, International Association for Relationship Research, and the International Communication Association. 

Theiss holds a Ph.D. from the University of Wisconsin.