'Ecometrics': Toward A Science of Assessing Ecological Settings, with Application to the Systematic Social Observation of Neighborhoods. Sociological Methodology 29: 1-41.. 1999.
A Multivariate, Multilevel Rasch Model with Application to Self-Reported Criminal Behavior. Sociological Methodology 33: 169-211.. 2003.
Systematic Social Observation of Public Spaces: A New Look at Disorder in Urban Neighborhoods. American Journal of Sociology 105: 603-651.. 1999.