Longitudinal Study of American Youth (LSAY), Seventh Grade Data, 1987-1988; 2015-2016

The Longitudinal Study of American Youth (LSAY) is a project that was originally funded by the National Science Foundation in 1985 and was designed to examine the development of: (1) student attitudes toward and achievement in science, (2) student attitudes toward and achievement in mathematics, and (3) student interest in and plans for a career in science, mathematics, or engineering, during middle school, high school, and the first four years post-high school. The relative influence parents, home, teachers, school, peers, media, and selected informal learning experiences had on these developmental patterns was considered as well.
The LSAY was designed to select and follow two cohorts of students in 1987. Cohort One was a national sample of approximately 3,000 tenth grade students in public high schools throughout the United States. Cohort Two, consisted of a national sample of 3,116 seventh grade students in public schools that served as feeder schools to the same high schools in which the older cohort was enrolled. Data collection continues for Cohorts One and Two, 31 years after the study began.
In the fall of 2015, data collection began on a third cohort: Cohort Three. Cohort Three consisted of 3,721 students in the seventh grade in public schools
throughout the United States. The data in this release provides seventh grade
comparison data across a 28-year timespan: Cohort Two (1987-1988) and Cohort
Three (2015-2016).
This study includes arts-related variables about student and parent participation in music, art, literary, dance, and theatrical pursuits. For a more details please see Description of Variables.

美国青年纵向研究（Longitudinal Study of American Youth，以下简称LSAY）是1985年由美国国家科学基金会（National Science Foundation）初始资助的研究项目，旨在考察以下领域的发展轨迹：（1）学生对科学学科的态度与学业成就；（2）学生对数学学科的态度与学业成就；（3）学生对科学、数学或工程领域职业的兴趣与职业规划，研究覆盖初中、高中以及高中毕业后前四年的时段。同时，研究亦探讨了父母、家庭环境、教师、学校、同伴群体、媒体以及特定非正式学习经历对上述发展模式的相对影响。
LSAY于1987年选取并追踪两批学生队列。第一批队列是来自全美公立高中的约3000名十年级学生的全国代表性样本；第二批队列包含3116名七年级学生的全国代表性样本，这些学生就读的公立学校均为第一批队列学生所在高中的对口生源校。该研究自启动以来已持续31年，目前仍在推进第一批与第二批队列的数据采集工作。
2015年秋季，第三批队列（队列三）的数据采集工作正式启动。队列三涵盖全美公立学校的3721名七年级学生。本次发布的数据提供了跨度28年的七年级学生对比数据集：分别对应1987-1988年的队列二与2015-2016年的队列三。
本研究包含与艺术相关的变量维度，涉及学生与家长在音乐、美术、文学、舞蹈及戏剧活动中的参与情况。如需获取更多细节，请参阅《变量说明》（Description of Variables）。