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computer-assisted telephone interview (CATI) The data available for download are not weighted. Users will need to weight the data prior to analysis. The CASEID variable was created for use with online analysis. System missing values were recoded to -1. To preserve respondent confidentiality, codes for the variables FIPS (FIPS County) and ZIP (Zip Code) have been replaced with blank codes. The variables PCTBLACK, PCTASIAN, PCTHISP, BLOCKCNT, MSAFLAG, CSA, CBSA, METRODIV, ZIP, NIELSMKT, STCODE, and CONGDIST were converted from character to numeric. Several codes in the variable CBSA contain diacritical marks. The data collection was produced by Taylor Nelson Sofres of Horsham, PA. Original reports using these data may be found via the ABC News Polling Unit Web site and via the Washington Post Opinion Surveys and Polls Web site. The variables CSA, METRODIV, CBSA, and MSA contain unknown codes.

计算机辅助电话访谈（Computer-Assisted Telephone Interview，CATI）数据集：可下载的原始数据未经过加权处理，用户需在开展分析前自行对数据进行加权操作。CASEID变量专为在线分析场景设计。系统缺失值已被重编码为-1。为保护受访者隐私，FIPS（FIPS County）与ZIP（Zip Code）变量的编码已替换为空编码。PCTBLACK、PCTASIAN、PCTHISP、BLOCKCNT、MSAFLAG、CSA、CBSA、METRODIV、ZIP、NIELSMKT、STCODE及CONGDIST变量已从字符型转换为数值型。CBSA变量的部分编码包含变音符号。本次数据采集由位于宾夕法尼亚州霍舍姆的Taylor Nelson Sofres公司完成。使用本数据集撰写的原始报告可通过ABC新闻民意调查部门官网及《华盛顿邮报》民意调查与民意监测官网获取。CSA、METRODIV、CBSA及MSA变量包含未知编码。