Inter-university Consortium for Political and Social Research . Each directory consists of at least six files. They include codebook, data, help, SPSS setup, SAS setup, study description, user guide, data documentation and data collection instrument. The study was designed to supply both comparative breadth and historical depth. Data were compiled from 110 nations and 44 urban places over periods up to 74 years, 1900-1974.
Information is included on murder, rape, robbery, assault, theft, and population.