Casey Randazzo

Assistant Professor
Casey Randazzo

Casey Randazzo investigates how communities use digital platforms and artificial intelligence, such as large language models, to organize collective action. Her research focuses on Human-AI organizing, examining how interactions between humans and AI agents influence disaster response and recovery.

Bio

Casey Randazzo is an Assistant Professor in the Department of Communication at UC Santa Barbara. Her research investigates how humans organize using communication technologies, with a focus on disaster recovery and response. She examines the roles of humans, AI agents, and discourse in shaping how information flows, tensions are managed, and communities mobilize. Dr. Randazzo draws on computational and qualitative methods, including network analysis, experimental simulations such as generative agent-based modeling, and thematic discourse analysis. Her research program demonstrates how communication processes and emerging technologies influence organizing during times of disruption.

Dr. Randazzo has published in leading journals and proceedings and has presented her work at research conferences spanning communication, computer-human interaction, and social networks. Her scholarship has been recognized with honors, including the 2024 Top Paper Award from the Organizational Communication Division of the National Communication Association. At UCSB, Dr. Randazzo teaches courses on organizational communication, technology, and social networks.

Education

Ph.D. (2025), Rutgers University, Department of Communication

Master’s (2021), Rutgers University, School of Communication and Information

B.S. (2013), Cornell University, Department of Communication

Coursework toward B.S., Raritan Valley Community College, Department of Communication

Hannah Stevens

Lecturer
Hannah Stevens
Bio

Dr. Hannah Stevens is Temporary Lecturer, following her recent role in the same position at the University of California, Davis, where she taught courses including Research Methods, Communication Theories, and Health Communication. Before that, she was a T32 National Institutes of Health Postdoctoral Fellow in the Department of Population and Quantitative Health Sciences at the University of Massachusetts Chan Medical School, where she received training in psychophysiology and tobacco regulatory science. Broadly speaking, her work focuses on the interactions among social media, their users, and their social contexts, emphasizing ways social media can be leveraged to mitigate health disparities. When she’s not working, Hannah loves binge-watching reality shows, making cupcakes, and spending quality time with her two senior dogs, Cleo and Coke, at the dog park!

Jiaying Liu a Co-Investigator on a 5-year, $3 Million NIDA Grant

2025-07-26

Dr. Jiaying Liu has been awarded a National Institute on Drug Abuse R01 grant as a Co-Investigator, developed with colleagues at the UC San Diego School of Public Health. The research team will also be working closely with the Santa Barbara County Public Health Department. The over $3 million project goes from July 2025 to April 2030. The project, titled “Strengthening text-based warning labels on cannabis edible packages” focuses on enhancing health warning messages for recreational cannabis products in California, using experimental and eye-tracking methods.

Brittany Wheeler Wins Top Poster Award

2025-06-17

Brittany Wheeler won a Top Poster Award from the Information Systems Division of ICA (Denver, June) for her poster entitled "Is Academic Online Bullying a Widespread Phenomenon? A Study of Scholarly Discourse on Twitter/X."