Interviews were conducted with household members in each
household sampled. The data for the Cities sample are organized by city
for each year (1972-1975) into 39 separate incident-level and 39
separate person-level datasets. Each file represents a city for a year.
A full sample of victims and a ten percent sample of non-victims for up
to four incidents was employed. Thus, a maximum of four incidents per
victim have been retained in the subset files. The remainder of the
incidents were dropped. In the entire Cities Sample, approximately 97%
of the respondents in each quarter report four or fewer incidents. As a
sample of the National Crime Survey, this dataset contains 12,000
sample households selected in 26 chosen cities, with approximately
10,000 interviews having actually taken place in each.
Major cities in the United States.