Welcome to my website. I am Professor of Communication at the University of Arizona. I also hold appointments in the Department of Psychology and the Arizona Cancer Center. I earned my M.S. in Communication from Illinois State University and Ph.D. in Communication Studies from the University of Texas at Austin.

My research is situated in the general areas of communication and technology, health communication, and social influence. I am particularly interested in issues that intersect these domains. Two topics define my current work: First, much of my research examines the implications of communication technologies for health communication and, in particular, coping with illness. I have conducted studies investigating the use and effects of communication technologies for social support, self-disclosure, information seeking, and related activities. Second, I am interested in the communication processes involved in resisting persuasion attempts. My research in this area examines psychological reactance theory and inoculation theory. I currently serve as an editorial board member at Communication Monographs, Communication Research, European Journal of Health Communication, Health Communication, Human Communication Research, Human Communication & Technology, Journal of Applied Communication Research, and Journal of Computer-Mediated Communication