National Longitudinal Surveys

The National Longitudinal Surveys provide information from nationally representative samples regarding labor market participation and activities, such as: educational history and employment status, number of hours worked per week and other job characteristics. Information is also provided on significant aspects of life, such as: marriage, fertility, income, and health.
<p><b>Background</b></p> The National Longitudinal Surveys are done by the Bureau of Labor Statistics at the US Department of Labor. The 5 surveys are done to gather information regarding significant events and labor market activities among youth and young adults in the United States. Specific data regarding labor market activities includes, and is not limited to: measures of labor market experience, tenure, employer mobility, educational history, transition from school to work and retirement pl
anning and expectations. Data about life events includes: marital and fertility histories, health conditions, insurance coverage, participation in government assistance programs, criminal histories, and drug and alcohol use.
<p><b>User Functionality</b></p> Users can view and download existing news releases and data tables. Most of the data sets are also available to download for free. Some specific portions may require a fee or an application. The site also provides users with extensive user guides to assist in data analysis. <p><b>Data Notes </b></p> The five National Longitudinal Surveys are: The National Longitudinal Survey of Youth, 1997; National Longitudinal Survey of Youth, 1979; National Longitudinal Surve
y of Young Women and Mature Women; National Longitudinal Survey of Young Men and Older Men; NLS79 Children and Young Adults (survey of the biological children of the women from the 1979 NLS Youth Survey). Participants are considered to be a nationally representative sample. The website explains the survey methodology in detail.

全国纵向调查（National Longitudinal Surveys）采用全国代表性抽样样本，收集有关劳动力市场参与及相关活动的信息，具体涵盖教育经历、就业状况、周工作时长及其他工作特征等；同时也收录人生重要维度的相关数据，包括婚姻状况、生育情况、收入水平与健康状态等。

<b>背景</b>
全国纵向调查由美国劳工部下属的劳工统计局（Bureau of Labor Statistics）负责实施。该项目包含5项子调查，旨在收集美国青年及年轻群体的重大人生事件与劳动力市场活动相关信息。劳动力市场活动的具体数据包括但不限于：劳动力市场经历时长、任职年限、雇主流动情况、教育经历、从校园到职场的过渡情况，以及退休规划与预期等。人生事件相关数据则涵盖：婚姻与生育史、健康状况、保险覆盖情况、政府援助计划参与情况、犯罪记录，以及毒品与酒精使用情况等。

<b>用户功能</b>
用户可查看并下载现有新闻稿与数据表。绝大多数数据集均可免费下载，部分特定数据片段可能需要付费或提交申请后方可获取。该网站还为用户提供了详尽的用户指南，以辅助数据分析工作。

<b>数据说明</b>
五项全国纵向调查子调查分别为：1997年全国青年纵向调查、1979年全国青年纵向调查、全国青年女性与成熟女性纵向调查、全国青年男性与老年男性纵向调查，以及NLS79儿童与年轻成人调查（即针对1979年全国青年纵向调查受访女性的亲生子女开展的调查）。所有受访者均为全国代表性抽样样本。该网站详细说明了本次调查的方法论细节。