It continuously collects data on armed conflicts. Uppsala Conflict Data Program (UCDP). After a period of trials the Conflict Data Project was properly established at the Department by the mid-1980s. The IPUMS assigns uniform codes across all the samples and brings relevant documentation into a coherent form to facilitate analysis of social and economic change. This has complicated efforts to use them to study change over time. However, because different investigators created these samples at different times, they employed a wide variety of record layouts, coding schemes, and documentation. These samples, which draw on every surviving census from 1850-2000, and the 2000-2007 ACS samples, collectively constitute our richest source of quantitative information on long-term changes in the American population. Some of these samples have existed for years, and others were created specifically for this database. The Integrated Public Use Microdata Series (IPUMS-USA) consists of more than fifty high-precision samples of the American population drawn from fifteen federal censuses and from the American Community Surveys of 2000-2007.
Access is free, but registration is required. The data are coded and documented consistently across countries and over time to facillitate comparative research. IPUMS-International makes these data available to qualified researchers free of charge through a web dissemination system.
The project has collected the world's largest archive of publicly available census samples. Provides access to census microdata from 68 countries, comprising 211 censuses. IPUMS-International is an effort to inventory, preserve, harmonize, and disseminate census microdata from around the world. Among these supplemental surveys, the March Annual Demographic File and Income Supplement (hereafter referred to as the March CPS) is the most widely used by social scientists and policymakers, and it provides the data for IPUMS-CPS. Over time, supplemental inquiries on special topics have been added for particular months. A battery of labor force and demographic questions, known as the "basic monthly survey," is asked every month. Initiated in the 1940s in the wake of the Great Depression, the survey was designed to measure unemployment. Census Bureau and the Bureau of Labor Statistics. household survey conducted jointly by the U.S. IPUMS-CPS is an integrated set of data from 48 years (1962-2009) of the March Current Population Survey (CPS). Data and documentation can be downloaded directly selected datasets can be analyzed online. It hosts 16 specialized collections of data in education, aging, criminal justice, substance abuse, terrorism, and other fields. ICPSR maintains a data archive of more than 500,000 files of research in the social sciences. ICPSR ( Inter-university Consortium for Political and Social Research).Five easy steps: Guide (PDF U of Ottawa).
How to find, subset and download data from a Canadian survey on (PDF U of Ottawa).is expanding its survey data to include other national and international data sources. Statistics Canada's public-use survey data forms the core of 's social survey data holdings. Key polling data collections include: Canadian Opinion Research Archive (CORA), Canadian Gallup, and Ipsos Reid. provides unprecedented access to extensive collections of polling and social survey data.
supports basic tabulation and analysis online, and allows for the downloading of most datasets into statistical software for further analysis. It provides researchers the ability to search for survey questions (variables) across hundreds of datasets held in a growing number of collections. Ī web-based data exploration, extraction and analysis tool. Data can be downloaded via the interface. List of surveys available through the DLI.