National Corrections Reporting Program, 2001: [United States]

The purpose of this study was to gather data on prisoners entering and leaving the custody or supervision of state and federal authorities. Data refer to prisoners who were admitted to prison (Part 1), released from prison (Part 2), or released from parole (Part 3) in 2001. Variables include incarceration history, current offenses, and total time served. Background information on individuals includes year of birth, sex, age, race, Hispanic origin, and educational attainment.

本研究旨在收集涉及进入或脱离州及联邦当局羁押与监管状态的囚犯相关数据。本次研究的数据覆盖2001年三类囚犯：第一部分为入狱囚犯，第二部分为刑满释放囚犯，第三部分为假释释放囚犯。研究涉及的变量包括监禁史、当前所犯罪行及累计服刑时长。个体背景信息涵盖出生年份、性别、年龄、种族、西班牙裔血统以及受教育程度。