The United States, now with more than 625,000 inmates in prison, has long been recognized as a country that imprisons a large portion of its population. Since 1980, the nation's imprisonment rate has nearly doubled. Presently, over 40 states are under some form of litigation related to crowding or unconstitutional conditions of confinement. As states respond to the pressure of overcrowding, more attention is being paid to comparing states in terms of their use of other forms of control in addition to prisons. States are also concerned with the high costs of these systems. State and federal prison population data, the most obvious means of calculating comparative imprisonment rates, reflect only a single component of a jurisdiction's correct...