Search Results Use the search box below to revise your search, or start a new search. Studies (1) Variables Publications Your query returned 1 studies. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Project on Human Development in Chicago Neighborhoods (PHDCN): Systematic Social Observation, 1995 (ICPSR 13578) Earls, Felton J.; Raudenbush, Stephen W.; Reiss, Albert J., Jr.; et al.