Faculty / Elizabeth Groff

Dr. Groff’s primary research interests are in crime and place; modeling geographical influences on human activity; agent-based modeling as a methodology for exploring theory; crime prevention; and policing especially the use of technology in law enforcement agencies. Her current research includes: (1) a test of the efficacy of burglary prevention based on near repeat patterns with Dr. Taniguchi (Police Foundation); (2) an exploration of the role of parks in urban neighborhoods in Philadelphia with Cory Haberman and Dr. Taylor; (3) assisting the Temple Police Department with the development of their analytic capacity with Lauren Holt; and (4) conducting a randomized controlled field experiment to test the effect of different dosages of police presence on crime in New York Police Department Impact Zones with Dr. Wood, Evan Sorg and Dr. Fisher (NYPD).

Selected Journal Publications:

Groff, E.R., Ratcliffe, J.R., Haberman, C., Sorg, E., Joyce, N., and R. Taylor (forthcoming). Does What Police Do at Hot Spots Matter?: The Philadelphia Policing Tactics Experiment. Criminology.


Groff, E.R. Quantifying the Exposure of Street Segments to Drinking Places Nearby. Journal of Quantitative Criminology. 30(3):527-548. Published on-line December 17, 2013 as DOI 10.1007/s10940-013-9213-2. (September 2014).


Weisburd, D., Groff, E.R., and S-M Yang. Understanding and Controlling Hot Spots of Crime: The Importance of Formal and Informal Social Controls. Prevention Science. 15(1):31-43.


Johnson, S. and E.R. Groff. Strengthening Theoretical Testing in Criminology Using Agent-based Modeling. Journal of Research in Crime and Delinquency. 51(4): 508-524.


Hibdon, J. and E.R. Groff. What You Find Depends on Where You Look: Using Emergency Medical Services Call Data to Target Illicit Drug Use Hot Spots. Journal of Contemporary Criminal Justice 30(2): 169-185.


Groff, E.R. and B.L. Lockwood. Criminogenic Facilities and Crime across Street Segments in Philadelphia: Uncovering Evidence about the Spatial Extent of Facility Influence. Journal of Research in Crime and Delinquency 51(3): 277-314.


Groff, E.R., Taylor R., Elesh D., McGovern, J., and L. Johnson. Permeability across a Metropolitan Area: Conceptualizing and Operationalizing a Macro Level Crime Pattern Theory. Environment and Planning A 46(1):129-152.


Weisburd, D., E. Groff, et al. (2012). The Criminology of Place: Street Segments and Our Understanding of the Crime Problem. Oxford, Oxford University Press.


Rengert, G. F. and E. R. Groff (2011). Residential Burglary:  How the Urban Environment and Our Lifestyles Play A Contributing Role. Springfield, IL, Charles C. Thomas.


Selected Book Chapters:

Groff, E.R. Measuring a Place’s Exposure to Facilities Using Geoprocessing Models:  An Illustration Using Drinking Places and Crime. In Leitner, M. (ed). Crime Modeling and Mapping Using Geospatial Technologies. Pp. 269-295. Springer.


Groff, E.R. and M.J. Fraley. Moving Agents on Representative Networks.  In K. Johnston (ed), Agent Analyst: Agent-Based Modeling in ArcGIS. Pp. 203-238. ESRI Press: Redlands, CA. http://resources.arcgis.com/en/help/agent-analyst/


Groff, E.R. and M.J. Fraley. Adding Complexity to Agent Movement on Representative Networks.  In K. Johnston, et al (ed), Agent Analyst: Agent-Based Modeling in ArcGIS. ESRI Press: Redlands, CA. Pp. 359-410. http://resources.arcgis.com/en/help/agent-analyst/