A two-stage stratified cluster sampling design was
employed. At the first stage, 344 counties were selected from the
nations's approximately 3,100 counties. At the second stage, a
systematic sample of felons sentenced for murder/non-negligent
manslaughter, rape, robbery, aggravated assault, burglary, felony
larceny/motor vehicle theft, drug trafficking, and other offenses were
selected from each county's official records.
Sentenced felons in the United States.
official court records