The National Longitudinal Survey of Youth, 1997 Cohort
介绍1997年全国青年纵向调查（NLSY97）的背景、赞助方、实施过程及首年问卷内容，并对比其与早期调查的差异，供使用该数据的研究者参考。
This essay describes the new National Longitudinal Survey of Youth, 1997 Cohort (NLSY97) that is the data set used in the articles in this volume. It briefly describes the background for the survey, its sponsorship by the U.S. Department of Labor's Bureau of Labor Statistics, its fielding, and the nature of the substantive content of the first-year questionnaire. The paper notes major differences between this new survey and the earlier data sets in the National Longitudinal Survey Program.