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Libby Hemphill

Libby Hemphill , Ph.D.

Associate Professor of Communication and Information Studies
Director of Graduate Studies







214 Siegel Hall


Ph.D., University of Michigan School of Information, Information
M.S., University of Michigan School of Information, Information
B.A., The University of Chicago, General Studies in the Humanities

Research Interests 

Social media and social movements
Political communication
Data access and curation
Computer-mediated communication


Libby Hemphill joined the Department of Humanities in 2010 as an assistant professor. Libby's recent work has focused on how users leverage Twitter to influence public and social policy. She is especially interested how people marshal information and communication technologies in service of social change and in the ethics and pragmatics of big social data.

Seeking Ph.D. students with interests in:

Understanding how people use social media to advance social goals (e.g., organizing protests, political lobbying, advocating for change)

Issues of social justice and accessibility, especially in urban and/or rural environments

Programming—Python and/or R experience is helpful, along with some knowledge of statistics

Selected Publications 

Hemphill, L., Culotta, A., & Heston, M. (2016). #Polar Scores: Measuring Partisanship Using Social Media ContentJournal of Information Technology & Politics. doi: 10.1080/19331681.2016.1214093

Shapiro, M. and Hemphill, L. (2016) Agenda Building & Indexing: Does the U.S. Congress Direct New York Times Content through Twitter? Policy & Internet. doi: 10.1002/poi3.120

Auer, J.C., Kao, C-Y., Hemphill, L., Johnston, E.W., Teasley, S.D. (2014) The Uncertainty Challenge of Contingent Collaboration. Human Resource Management Journal24(4), 531-547. doi: 10.1111/1748-8583.12045.

Hemphill, L., Roback, A. (2014) Tweet Acts: How Constituents Lobby Congress via TwitterProceedings of the 2014 ACM Conference on Computer Supported Cooperative Work, Baltimore, MD. doi: 10.1145/2531602.2531735

Hemphill, L., Otterbacher, J., and Shapiro, M.A. (2013) What's Congress Doing on Twitter? Proceedings of the 2013 ACM Conference on Computer Supported Cooperative Work, San Antonio, TX. doi: 10.1145/2441776.2441876