The Initiation of a New Cohort of the Longitudinal Study of American Youth (LSAY)

这个项目正在启动一个新的七年级学生队列，并将美国青年纵向研究（LSAY）扩展到新一代。1987年，LSAY开始从美国公立学校的分层概率样本中选择7年级和10年级的学生作为全国队列。LSAY提供了一个有价值的纵向记录，记录了学生对年轻人生活计划、职业和新家庭的态度和经历的发展。最初的LSAY研究小组已经产生了大量的书籍、文章和论文中使用的数据，这些数据为广泛的教育和公共政策问题提供了见解和政策指导。在过去的25年里，美国社会和世界发生了许多变化。美国学生现在在全球就业市场上与其他国家的学生竞争，20世纪的军备竞赛正迅速转变为21世纪的教育竞赛。如果支持我们的公共政策的证据要保持相关性和及时性，就必须监控每一代新一代人的教育经历、职业和生活选择。为了确保可比性，新的七年级队列将使用1987年采用的大多数参数，并进行调整，以反映提高准确性和速度并降低成本的新技术。其基本设计是一项单线纵向研究，将从全国公立学校七年级学生的概率样本开始，最终可以跟踪数十年。拟议的设计将产生8,000名七年级学生的总样本。与1987年的样本相比，这种规模的样本将允许分析更多亚组的STEM动机、学习和职业进入。最初的1987年LSAY样本是使用分层的12单元矩阵来选择的，以产生美国公立学校七年级和十年级学生的准确概率样本。建议的新七年级队列将使用类似的抽样设计和框架进行选择。这12个单元格反映了该国的四个主要地区（东北、中北部、南部和西部，其中包括所有50个州）和每个地区的三个城乡位置（中心城市、中心城市郊区和非大都市区）。这项工作的更广泛影响在于它能够提供重要的数据，为STEM教育的政策和实践提供信息。良好的公共政策需要良好的数据，像这样的纵向研究提供了关于教育增长和发展的重要信息。LSAY是美国对教育发展进行的最长的综合研究，其对公共决策的长期价值是相当可观的。所产生的数据和对结果的分析将通过一个三部分计划分发给教育、企业和公共政策领导人。首先，研究将在专业会议上发表，并提交给评审期刊发表。其次，LSAY数据集将通过大学间政治和社会研究联盟（ICPSR）提供给广泛的跨学科研究人员。最后，将根据LSAY数据发布一份新的季度研究报告，向媒体和政策制定者强调重要的研究成果。

This project is initiating a new cohort of 7th grade students and extending the Longitudinal Study of American Youth (LSAY) to a new generation. In 1987, the LSAY began with national cohorts of 7th and 10th grade students selected from a stratified probability sample of public schools in the U.S. The LSAY has provided a valuable longitudinal record of the development of student attitudes and experiences into young adult life plans, careers, and new families. The original LSAY cohorts have produced data used in a significant number of books, articles, and dissertations that have provided insights and policy guidance on a wide range of educational and public policy issues. Many things have changed in American society and in the world over the last 25 years. American students now compete in a global employment market with students from other countries and the arms race of the 20th century is rapidly turning into the education race of the 21st century. It is essential to monitor the educational experiences and career and life choices of each new generation if the evidence supporting our public policy is to remain relevant and timely.To assure comparability, the new 7th grade cohort will use most of the parameters employed in 1987, making adjustments to reflect new technologies that improve accuracy and speed and reduce cost. The basic design is a single-strand longitudinal study that will begin with a national probability sample of 7th grade public school students that can eventually be followed for a number of decades. The proposed design would produce a total sample of 8,000 7th grade students. A sample of this size will allow analyses of the STEM motivations, learning, and career entry for more subgroups than was possible with the sample in 1987. The original 1987 LSAY sample was selected using a stratified 12-cell matrix to produce an accurate probability sample of 7th and 10th grade students in public school in the United States. The proposed new 7th grade cohort would be selected using a similar sampling design and framework. The 12 cells reflect the four major regions of the country (Northeast, North Central, South, and West, which include all 50 states) and three levels of urban-rural location (central cities, suburbs of central cities, and non-metropolitan areas) within each region.The broader impact of this work lies in its ability to provide important data that can inform policy and practice in STEM Education. Good public policy requires good data and longitudinal studies such as this one provide important information about educational growth and development. The LSAY is the longest comprehensive study of educational development conducted in the U.S. and its long-term value to public decision making is considerable. The data produced and analysis of the results will be disseminated to educational, corporate and public policy leaders through a three-part plan. First, research will be presented at professional meetings and submitted to refereed journals for publication. Second, the LSAY data set will be made available through the Inter-University Consortium for Political and Social Research (ICPSR) to a broad interdisciplinary spectrum of researchers. Finally, a new quarterly research report based on LSAY data will be published to highlight important research findings for the media and policy makers.