Survey of Income and Program Participation (SIPP): 1996 Panel Wave 11

<p>This data collection is part of a longitudinal survey designed to provide detailed information on the economic situation of households and persons in the United States. These data examine the distribution of income, wealth, and poverty in American society and gauge the effects of federal and state programs on the well-being of families and individuals. There are three basic elements contained in the survey. The first is a control card that records basic social and demographic characteristics for each person in a household, as well as changes in such characteristics over the course of the interviewing period. These include age, sex, race, ethnic origin, marital status, household relationship, education, and veteran status. Limited data are provided on housing unit characteristics such as units in structure, tenure, access, and complete kitchen facilities. The second element is the core portion of the questionnaire, with questions repeated at each interview on labor force activity, types and amounts of income, and participation in various cash and noncash benefit programs for each month of the four-month reference period. Data for employed persons include number of hours and weeks worked, earnings, and weeks without a job. Nonworkers are classified as unemployed or not in the labor force. In addition to providing income data associated with labor force activity, the core questions cover nearly 50 other types of income. Core data also include postsecondary school attendance, public or private subsidized rental housing, low-income energy assistance, and school breakfast and lunch participation. The third element consists of topical modules, which are a series of supplemental questions asked during selected household visits. Topical modules include some core data to link individuals to the core files. The Wave 1 Topical Module covers recipiency and employment history. The Wave 2 Topical Module includes work disability, education and training, marital, migration, and fertility histories, and household relationships. The Wave 3 Topical Module covers medical expenses and utilization of health care, work-related expenses and child support, assets and liabilities, real estate, shelter costs, dependent care and vehicles, value of business, interest earning accounts, rental properties, stocks and mutual fund shares, mortgages, and other assets. The Wave 4 Topical Module covers disability, taxes, child care, and annual income and retirement accounts. Data in the Wave 5 Topical Module describe child support, school enrollment and financing, support for nonhousehold members, adult and child disability, and employer-provided health benefits. Data in the Wave 6 Topical Module provide information on medical expenses, work-related expenses and child support paid, assets and liabilities, real estate, shelter costs, dependent care and vehicles, value of business, interest-earning accounts, rental properties, stock and mutual fund shares, mortgages, other financial investments. Wave 7 Topical Module includes annual income and retirement accounts, home health care, retirement expectations and pension plan coverage, and taxes. Wave 8 Topical Module covers adult well-being and welfare reform. Wave 9 Topical Module is the same as Waves 3 and 6 Topical Modules. Wave 10 Topical Module focuses on work schedules, disablility, taxes, child care, and annual income and retirement. Wave 11 includes child support, support for nonhousehold members, and adult and child disability. Wave 12 Topical Module is the same as Waves 3, 6, and 9 but also includes child well-being. (source: ICPSR, retrieved 06/28/2011)</p>

本数据集隶属于一项旨在为美国住户与个人经济状况提供详实数据的纵向调查项目。该数据集用于剖析美国社会的收入、财富与贫困分布格局，并评估联邦及州级政策对家庭与个体福祉的影响。本次调查包含三大核心组成部分：
第一部分为控制卡模块，用于记录住户内每位成员的基础社会与人口学特征，以及访查周期内此类特征的变动情况，涵盖年龄、性别、种族、族裔出身、婚姻状况、住户关系、受教育程度及退伍军人身份等信息。该模块同时提供有限的住房单元特征数据，包括建筑内单元数量、住房保有形式、使用权限及完备厨房设施情况等。
第二部分为问卷核心模块，在每次访查中均会重复询问四个月参考周期内各月的劳动力活动情况、收入类型与金额，以及各类现金与非现金福利项目的参与情况。就业人员相关数据包括工作时长、工作周数、收入及失业周数等；非就业人员则被划分为失业群体或非劳动力群体。除劳动力活动相关收入数据外，核心问卷还涵盖近50类其他收入类型。核心数据同时包含高等教育就读情况、公私补贴租赁住房情况、低收入群体能源援助项目参与情况，以及学校早餐与午餐计划参与情况。
第三部分为专题模块组，即在选定的住户访查中开展的一系列补充性问卷问题。专题模块包含部分核心数据字段，用于将个体与核心数据集进行关联匹配。各波次专题模块具体内容如下：
第一波专题模块涵盖福利申领经历与就业历史；
第二波专题模块包含工作残疾情况、教育与培训经历、婚姻史、迁移史、生育史及住户关系等内容；
第三波专题模块涵盖医疗费用与医疗服务使用情况、工作相关开支与子女抚养费、资产与负债、不动产、住房成本、受抚养人照料与车辆情况、企业价值、计息账户、租赁房产、股票与共同基金份额、抵押贷款及其他资产；
第四波专题模块涵盖残疾情况、税务事项、儿童照料、年度收入与退休账户相关内容；
第五波专题模块的数据涉及子女抚养费、学校入学与资助情况、对非住户家庭成员的资助、成人与儿童残疾情况，以及雇主提供的健康福利；
第六波专题模块提供医疗费用、工作相关开支与已支付子女抚养费、资产与负债、不动产、住房成本、受抚养人照料与车辆情况、企业价值、计息账户、租赁房产、股票与共同基金份额、抵押贷款及其他金融投资相关信息；
第七波专题模块包含年度收入与退休账户、居家医疗护理、退休预期与养老金计划参保情况及税务事项；
第八波专题模块涵盖成年人福祉与福利制度改革相关内容；
第九波专题模块与第三、第六波专题模块内容一致；
第十波专题模块聚焦工作排班、残疾情况、税务事项、儿童照料及年度收入与退休相关内容；
第十一波专题模块涉及子女抚养费、对非住户家庭成员的资助及成人与儿童残疾情况；
第十二波专题模块与第三、第六、第九波专题模块内容一致，同时新增了儿童福祉相关内容。