ANES 1990 Time Series Study Geocodes

This study is part of the American National Election Studies (ANES), a time series collection of national surveys fielded since 1948. The American National Election Studies are designed to present data on Americans' social backgrounds, political predispositions, social and political values, perceptions and evaluations of groups and candidates, opinions on questions of public policy, and participation in political life. The files included in this study are restricted-use due to the geocodes contained in them for the year listed in the title. Please review the contents of the ZIP file ANES_RDS_Documentation_Geocodes.zip for helpful information about the meanings of variables and changes to geocoding over time. Should you need to merge datasets across the 1992-1997 or 2000-2004 panel, ID bridging files for those panels are also included in the same ZIP file.

本研究属于美国国家选举研究（American National Election Studies，简称 ANES）的一部分，该研究是一个自1948年起进行的时序性国家调查数据集。美国国家选举研究旨在呈现有关美国人民的社会背景、政治倾向、社会政治价值观、对群体和候选人的认知与评估、对公共政策问题的观点以及政治生活参与的资料。本研究中包含的文件由于其中包含的地理编码信息而被限制使用，这些地理编码信息对应于标题中列出的年份。请查阅ZIP文件ANES_RDS_Documentation_Geocodes.zip中的内容，以获取有关变量含义及其地理编码随时间变化的详细信息。如需合并1992-1997或2000-2004面板的数据集，同一ZIP文件中也包含了这些面板的ID桥接文件。