The National Longitudinal Study of the High School Class of 1972
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The National Longitudinal Study of the High School Class of 1972 (NLS-72) is part of the Secondary Longitudinal Studies (SLS) program; program data is available since...
1972届高中毕业生全国追踪调查（National Longitudinal Study of the High School Class of 1972，NLS-72）隶属于中等教育追踪研究（Secondary Longitudinal Studies，SLS）项目；该项目的数据集自……起即可获取。
