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The second National Survey of Youth in Custody (NSYC-2) was conducted in all 50 states and the District of Columbia by Westat (Rockville, MD), under a cooperative agreement with the Bureau of Justice Statistics (BJS). Data collection was conducted in 326 juvenile facilities between February and September 2012. Interviewing juveniles in residential facilities on such sensitive topics required extensive preparations with agency and facility administrators prior to the interview. These preparations ranged from methods to obtain consent, procedures to file mandatory reports of child abuse or neglect, arrangements for counseling in case a youth became upset, and logistical support to physically carry out the interviewing. The specific procedures that had to be negotiated with state and local authorities were: Consent to interview minors - 22 states and the District of Columbia provided consent in loco parentis (ILP), in which the state agency acting as the guardian provided consent; 20 states required written consent and 3 states required either verbal or written parental or guardian consent (PGC); and 5 states allowed for a combination of ILP and PGC. Mandatory reporting of abuse or neglect - all survey staff in direct contact with youth had to comply with state and local reporting requirements when a youth made a verbal statement suggesting abuse or neglect. Jurisdictions provided contact information and instructions for submitting reports to an agency outside of the facility (e.g., local Child Protective Services). Counseling services - jurisdictions were asked to identify both facility-based and external resources for counseling services in the event a youth would become emotionally upset during the interview or make a specific request to the interviewer for such services. The NSYC-2 comprised two questionnaires - a survey of sexual victimization and a survey of past drug and alcohol use and treatment. Youth were randomly assigned one of the questionnaires so that, at the time of the interview, the content of the survey remained unknown to facility staff and the survey interviewers. The interviews, which averaged approximately 30 minutes in length, used audio computer-assisted self-interviewing (ACASI) data collection methods. Youth interacted with the computer-administered questionnaires using a touchscreen and synchronized audio instructions delivered through headphones. Youth could choose to take the interview in either English or Spanish. Youth completed the interview in private, with the interviewer remaining in the room but in a position that did not offer a view of the computer screen. A total of 9,703 youth participated in the NSYC-2. Of these, 8,707 youth completed the survey on sexual victimization and passed editing and consistency checks. A total of 996 completed the survey on drug and alcohol use and treatment.

第二次全国在押青少年调查（Second National Survey of Youth in Custody，简称NSYC-2）由位于马里兰州罗克维尔的韦斯塔特公司（Westat）与美国司法统计局（Bureau of Justice Statistics，简称BJS）签订合作协议后，在全美50个州及哥伦比亚特区联合开展。数据收集工作于2012年2月至9月间，在326所青少年管教机构中进行。针对寄宿机构内青少年开展此类敏感主题访谈，需在访谈前与机构及设施管理人员完成大量筹备工作，涵盖获取知情同意的方法、提交儿童虐待或忽视强制报告的流程、青少年情绪激动时的心理辅导安排，以及保障访谈顺利实施的后勤支持。需与州及地方当局协商的具体程序包括：一是未成年人访谈知情同意：22个州及哥伦比亚特区采用代理监护人同意（in loco parentis，简称ILP）模式，即由州政府机构作为监护人提供同意；20个州要求书面知情同意，3个州要求口头或书面的父母/监护人同意（parental or guardian consent，简称PGC）；另有5个州允许结合ILP与PGC两种模式。二是虐待或忽视强制报告：所有直接接触青少年的调查人员，若青少年作出疑似虐待或忽视的口头陈述，必须遵守州及地方的报告要求。各辖区提供了向机构外单位（如当地儿童保护服务部门）提交报告的联系方式与操作指南。三是心理辅导服务：各辖区需明确机构内部及外部的心理辅导资源，以便在青少年访谈中情绪失控，或主动向访谈者提出辅导请求时提供相应支持。NSYC-2包含两套问卷：一套为性受害情况调查问卷，另一套为过往药物与酒精使用及治疗情况调查问卷。青少年被随机分配其中一套问卷，以此确保访谈开展时，机构工作人员与访谈者均无法预知问卷内容。本次访谈平均时长约30分钟，采用音频计算机辅助自我访谈（Audio Computer-Assisted Self-Interviewing，简称ACASI）数据收集方法。青少年通过触摸屏完成问卷作答，并通过耳机收听同步语音引导，可选择英语或西班牙语进行访谈。访谈全程为私密环境，访谈者虽身处同一房间，但所处位置无法看到计算机屏幕。本次调查共招募9703名青少年参与。其中8707名青少年完成了性受害情况调查，并通过了数据编辑与一致性检验；另有996名青少年完成了药物与酒精使用及治疗情况调查。