William Marcellino

William Marcellino
Senior Behavioral and Social Scientist; Professor, Pardee RAND Graduate School
Washington Office


Ph.D., Carnegie Mellon University

Media Resources

This researcher is available for interviews.

To arrange an interview, contact the RAND Office of Media Relations at (310) 451-6913, or email media@rand.org.

More Experts


Bill Marcellino is a senior behavioral scientist at the RAND Corporation, professor of text analytics at the Pardee RAND Graduate School, and lecturer at Carnegie Mellon University and Johns Hopkins University. He was trained as a sociolinguist and corpus linguist, and at RAND he develops analytic toolsets, including RAND-Lex, RAND's proprietary text analytics suite. Marcellino teaches text analytics methods for big datasets (e.g. social media), as well as qualitative research methods. His research focuses on information as a warfighting function, intelligence, military resilience, counter-violent extremism/terrorism, and social media as a data source. He has also served as a U.S. Marine tank officer and enlisted rifleman. Marcellino received his Ph.D. in rhetoric from Carnegie Mellon University.

Pardee RAND Graduate School Courses

Recent Projects

  • Sex Offender Behaviors and Risk Factors
  • Defending Against and Mitigating the Effects of Disinformation
  • Army Contract Analytics Capability Development
  • RAND Corporation Conspiracy Theories Research
  • Marine Intercept Program

Selected Publications

William M. Marcellino, Kim Cragin, Joshua Mendelsohn, Andrew Cady, Madeline Magnuson, and Kathleen Reedy, "Measuring the Popular Resonance of Daesh’s Propaganda," Journal of Strategic Security, 10(1), 2017

Marcellino, William, Kate Cox, Katerina Galai, Linda Slapakova, Amber Jaycocks, and Ruth Harris, Human-machine detection of online-based malign information, RAND Corporation (RR-A519-1), 2020

William M. Marcellino, "Talk like a Marine: USMC linguistic acculturation and civil-military argument," Discourse Studies, 16(3), 2014

William M. Marcellino, "Revisioning Strategic Communication Through Rhetoric & Discourse Analysis," Joint Forces Quarterly, (76), 2016

Christopher Paul & William M. Marcellino, Dominating Duffer’s Domain: Lessons for the 21st Century Information Operations Practitioner, RAND Corporation (RR-1166), 2017

Kavanagh, Jennifer, William Marcellino, Jonathan S. Blake, Shawn Smith, Steven Davenport, and Mahlet Gizaw, News in a Digital Age: Comparing the Presentation of News Information over Time and Across Media Platforms, RAND Corporation (RR-2960), 2019

Johnson, Christian, William Marcellino, Bag-of-Words Algorithms Can Supplement Transformer Sequence Classification & Improve Model Interpretability, RAND Corporation (WR-A1719-1), 2022

Marcellino, William, Meagan L. Smith, Christopher Paul, and Lauren Skrabala, Monitoring Social Media: Lessons for Future Department of Defense Social Media Analysis in Support of Information Operations, RAND Corporation (RR-1742), 2017

Recent Media Appearances

Interviews: BTRtoday; The World and Everything in It