National Inmate Survey, 2008-2009

The National Inmate Survey, 2008-2009 (NIS-2) was conducted in 167 state and federal prisons between October 13, 2008, and March 11, 2009; 286 jails between January 20, 2009, and August 13, 2009; and 10 special (military, Indian country, and Immigration and Customs Enforcement (ICE)) facilities between May 11, 2009, and December 17, 2009. The data were collected by RTI International under a cooperative agreement with the Bureau of Justice Statistics (BJS). The NIS-2 comprised two questionnaires -- a survey of sexual victimization and a survey of past drug and alcohol use and treatment. Inmates were randomly assigned to receive one of the questionnaires so that at the time of the interview the content of the survey remained unknown to facility staff and the interviewers. A total of 81,566 inmates participated in the survey, including 32,029 inmates in state and federal prisons, 48,066 inmates in jails, 399 inmates in military facilities, 115 inmates in Indian country jails, and 957 inmates in facilities operated by ICE. The respondents were asked about the type of sexual contact, the frequency, when it occurred, and where it occurred. The survey also sought information on any injuries received and the treatment obtained for those injuries. Other questions pertained to the reporting of sexual contact -- if it was reported, to whom it was reported, and any results from reporting sexual contact. Respondents were also asked for reasons why they had not reported the sexual contact if no report was made. Background and demographic information collected includes reasons for incarceration, sexual history, sexual orientation, marital status, gender, ethnicity, and physical characteristics such as height and weight.

2008-2009年全国囚犯调查（National Inmate Survey, NIS-2）于2008年10月13日至2009年3月11日期间，在167所州立及联邦监狱开展；于2009年1月20日至8月13日期间，覆盖286所看守所；于2009年5月11日至12月17日期间，纳入10所特殊监管场所，包括军事设施、印第安保留地监管场所，以及移民与海关执法局（Immigration and Customs Enforcement, ICE）管辖设施。本次调查数据由RTI国际（RTI International）依据与美国司法统计局（Bureau of Justice Statistics, BJS）签订的合作协议采集完成。NIS-2包含两套问卷，分别为性受害情况调查问卷与过往毒品、酒精使用及治疗情况调查问卷。调查采用随机分配方式向囚犯发放其中一份问卷，以确保访谈实施时，监管设施工作人员与访谈人员均未知晓问卷内容。本次调查共回收81566名囚犯的有效应答，其中州立与联邦监狱在押人员32029名、看守所在押人员48066名、军事设施监管对象399名、印第安保留地看守所在押人员115名，以及ICE管辖设施内的在押人员957名。受访者需回答性接触的类型、发生频率、发生时间与地点；同时需提供遭受性接触后所受伤害及接受治疗的相关信息；其他问题涉及性接触的举报情况，包括是否举报、举报对象及举报后的处理结果；若未进行举报，则需说明未举报的原因。本次调查收集的背景与人口统计学信息包括入狱原因、性史、性取向、婚姻状况、性别、族裔，以及身高、体重等身体特征。