Public Use Microdata Sample of the 1900 Census

1900 年人口普查的公共使用微观数据样本

• 批准号: 6678844
• 负责人: Steve Ruggles
• 金额: $ 50.92万
• 依托单位: UNIVERSITY OF MINNESOTA
• 依托单位国家: 美国
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-07-06 至 2008-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6678844
• 关键词: Internet; archives; automated data processing; data collection methodology /evaluation; ethnic group; family structure /dynamics; fertility; geographic difference; household; human data; human migration; human population study; infant mortality; information dissemination; information systems; longitudinal human study; method development; occupations; social change; socioeconomics; statistics /biometry

DESCRIPTION (provided by applicant): This proposal seeks continuation funding to expand the 1900 Public Use Microdata Sample of the U.S. Census almost six-fold from 806,000 cases to approximately 4,626,000 cases, representing 6 percent of the population. Similar high-density samples are available for the period since 1980. With the rapid decline in data storage and processing costs during the past decade, scholars are increasingly capitalizing on the power of these large samples. Historical research based on census microdata is also growing rapidly. The Integrated Public Use Microdata Series (IPUMS), a series of census microdata spanning the period from 1850 to 2000, has opened important new avenues of research that have expanded our understanding of migration, nuptiality, fertility, the family, and labor markets. A new sample for 1900 providing information on 6 percent of the American population will stimulate a broad range of new research topics and methodological approaches to the study of long-run demographic change, ranging from the study of the oldest-old to multilevel analysis. This project involves seven main tasks: 1) Data entry of information on approximately 3,820,000 individuals from the original enumerators' manuscripts; 2) Development of dictionaries to translate each alphabetic entry into numeric codes compatible with IPUMS samples for other census years; 3) Evaluation of sample quality through consistency checks, random blind verification of approximately 115,000 cases, and comparison with aggregate statistics in the published census volumes; 4) Editing, cleaning, and allocation of missing, illegible, and inconsistent data through logical rules and imputation procedures; 5) Construction of new variables on household composition, relationships within families, geographic characteristics, and socioeconomic status; 6) Development of documentation, including full descriptions of the sampling and data processing methods, a detailed analysis of comparability issues, and a user's guide; and, 7) Incorporation of the sample and documentation into the IPUMS data access system.

描述（由申请人提供）：该提案寻求延续资金，以扩大1900年美国人口普查的Microdata样本，将近6倍从806,000例案件到约4,626,000例案件，占人口的6％。自1980年以来，此期间也可以使用类似的高密度样本。在过去十年中，数据存储和处理成本的迅速下降，学者们越来越多地利用这些大样本的能力。基于人口普查的历史研究也正在迅速增长。从1850年到2000年的一系列人口普查微型数据，综合公共使用微型ATS系列（IPUMS）开辟了重要的新研究途径，这些新途径扩大了我们对移民，婚礼，生育能力，家庭和劳动力市场的了解。 1900年提供有关6％美国人群的信息的新样本将刺激广泛的新研究主题和方法论方法，再到研究长期人口统计学变化的研究，从对最古老的老年人到多级分析的研究。 该项目涉及七个主要任务：1）来自原始枚举者手稿中约3,820,000个人的信息输入数据； 2）词典的开发将每个字母输入转换为与其他人口普查年的IPUM样本兼容的数字代码； 3）通过一致性检查，大约115,000例病例的随机盲目验证对样本质量的评估以及与已发表的人口普查量中的总统计数据进行比较； 4）通过逻辑规则和插图程序对缺失，难以辨认和不一致的数据进行编辑，清洁和分配； 5）建造有关家庭组成，家庭关系，地理特征和社会经济地位的新变量； 6）文档的开发，包括对采样和数据处理方法的完整描述，对可比性问题的详细分析以及用户指南； 7）将样本和文档合并到IPUMS数据访问系统中。