All Sites

NACDA acquires and provides access to data relevant to gerontological research with an emphasis on major issues of scientific and policy relevance.

NACJD facilitates research in criminal justice and criminology through the preservation, enhancement, and sharing of computerized data resources. NACJD also promotes original research based on archived data and provides specialized training workshops in quantitative analysis of crime and justice data.

CrimeStat version 3.0 is a spatial statistics program for the analysis of crime incident locations, developed by Ned Levine & Associates. The program is Windows-based and interfaces with most desktop GIS programs. It provides supplemental statistical tools to aid law enforcement agencies and criminal justice researchers in their crime mapping efforts. CrimeStat is being used by many police departments around the country as well as by criminal justice and other researchers.

PHDCN is an interdisciplinary study of how families, schools, and neighborhoods affect child and adolescent development in urban Chicago neighborhoods. It examined the developmental pathways of both positive and negative human social behaviors, including the causes of juvenile delinquency, adult crime, substance abuse, and violence.

DSDR provides resources to demographic data producers and users, including confidentiality and disclosure review, restricted data contract development and data dissemination, a searchable index of important demography and population study data, and a catalogue of publications using data indexed.

ICPSR has created this Web site to permit users to download various versions of the Census Bureau's TIGER (Topologically Integrated Geographic Encoding and Referencing) database. Data for individual states can be downloaded from the maps or menu interfaces associated with each of the TIGER versions.

ICPSR has created this collection to serve as a focus for United States Census materials. The site seeks to provide information about all U.S. Census data and documentation files, training activities, links to relevant sites for Census users, and guidelines to aid researchers in the use of these files.

Research Connections (RC) offers a comprehensive, easily searchable collection of more than 15,000 resources from the many disciplines related to child care and early education. The site offers the most current publications, as well as links to child care policy statements.

The goal of this project is to inform the Foundation for Child Development's PreK-3rd initiative and build the research field by facilitating the analysis of rich, complex, longitudinal datasets that contain a wide range of variables on the child, family, school, and neighborhood.

Research shows that sexual and gender minority groups experience health disparities as a result of multiple socio-cultural factors. The Center offers data and resources to health researchers to fill critical knowledge gaps related to the health of sexual and gender minorities, strengthening the foundation for culturally competent treatment and behavior change models.

CPES provides data on the distributions, correlates, and risk factors of mental disorders among the general population, with special emphasis on minority groups. CPES permits the investigation of cultural and ethnic influences on mental health.

HMCA preserves and disseminates data collected by research projects funded by The Robert Wood Johnson Foundation, the nation's largest philanthropy devoted exclusively to improving the health and health care of all Americans.

IFSS offers data and tools for examining issues related to families and fertility in the United States spanning five decades. IFSS encompasses the Growth of American Families (GAF), National Fertility Surveys (NFS), and National Surveys of Family Growth (NSFG), as well as a single dataset of harmonized variables across all ten surveys. Analytic tools make it possible to quickly and easily explore the data and obtain information about changes in behaviors and attitudes across time.

SAMHDA provides public data access and online analysis for important substance abuse and mental health data collections. The project offers variable-level searching, an archive of survey instruments, related literature for data collections, a listserv, disclosure analysis, and traditional data products. SAMHDA was established at ICPSR in 1995 by the Office of Applied Studies (OAS), Substance Abuse and Mental Health Services Administration (SAMHSA).

As the international community is drawn closer together through the phenomenon of globalization, access to international data has become critical for scholars and researchers around the world. Finding reliable data sources that reflect international dimensions can be difficult. In an effort to meet the growing demands for international data, ICPSR has created the International Data Resource Center (IDRC). The IDRC acts as a clearinghouse for international data housed at ICPSR.

The OLC is the result of discussions with teaching faculty about using data in their classrooms and the challenges such undertakings can entail. Instructors directed ICPSR to develop tools that would: 1) quickly locate relevant data that are easy to work with and that nicely demonstrate the concept(s), and 2) enable the instructor to customize the materials to their own teaching approach and syllabus.

TeachingWithData.org is a repository of educational materials designed to improve quantitative literacy skills in social science courses. Built especially for faculty teaching post-secondary courses in such areas as demography, economics, geography, political science, social psychology, and sociology, the materials include stand-alone learning activities, tools, and pedagogy services.

Voting Behavior: The 2008 Election is a new SETUPS (Supplementary Empirical Teaching Units in Political Science) that offers students the ability to analyze an accessible dataset drawn from the 2008 National Election Study (NES) survey of the American electorate. This instructional module is part of a long line of voting behavior SETUPS, which began with the 1972 election.

MDRC is a membership-funded archive whose purpose is to provide data resources for the comparative analysis of issues affecting racial and ethnic minority populations in the United States. We offer streamlined access to existing ICPSR data and to newly acquired studies that are relevant to the study of immigration, place of origin, ancestry, ethnicity, and race in the United States. Access to MDRC data is available to anyone at an ICPSR member university or institution.

TPDRC archives and distributes data collected by government agencies, non-governmental organizations, and researchers about the nature of intra- (domestic) and international terrorism incidents, organizations, perpetrators, and victims; governmental and nongovernmental responses to terror and citizen's attitudes towards terrorism, terror incidents, and the response to terror.

The Data Documentation Initiative (DDI) is an emerging standard for social science metadata that is being developed by an international group called the DDI Alliance. Version 3.0 of the DDI documents the life cycle of research data from the start of a research project through data dissemination.

Data-PASS acquires, preserves, and disseminates data from opinion polls, voting records, large-scale surveys, and other social science studies, many of which are considered at risk of being lost.

The primary objective of the digital preservation function is to ensure long-term access to the more than 500,000 files in the ICPSR collections. ICPSR is a data archive with a 45-year track record for preserving and making data available. Within that context, digital preservation is carried out as a distributed function that is integrated into ICPSR operations.

An award-wining Digital Preservation Management tutorial that provides an introduction to the basic tenets of digital preservation and is geared toward librarians, archivists, curators, managers, and technical specialists. ICPSR also provides of the Digital Preservation Management workshop curriculum that builds on the tutorial content.

This project investigates the later nineteenth-century mortality plateau and eventual mortality transition in America, through a formal semantic analysis of literal causes of death in the Connecticut River Valley mill towns of Holyoke and Northampton, Massachusetts from 1850 to 1912. We address the problem of precision of historical cause-of-death data through an integrated archival social history of death reporting, and analyses of changing historical cause-of-death nomenclature, social biases in the reporting of deaths and probabilistic cause-of-death classification.

This project seeks to improve scientific understanding and enhance prevention of risks to participants in social science research, through four coordinated and tightly linked projects. These projects address concerns of researchers and policymakers, and parts of the lay public: diagnosing, communicating and reducing potential harms to human subjects of research.

IFSS offers data and tools for examining issues related to families and fertility in the United States spanning five decades. IFSS encompasses the Growth of American Families (GAF), National Fertility Surveys (NFS), and National Surveys of Family Growth (NSFG), as well as a single dataset of harmonized variables across all ten surveys. Analytic tools make it possible to quickly and easily explore the data and obtain information about changes in behaviors and attitudes across time.

A study of the reciprocal relationship between population and environment in the American Great Plains focusing on the relationship between the agricultural land-use and demographic behavior. The researchers have collected county-level data on agriculture, population, and the biophysical environment from between 1870 and the present (for roughly 450 counties), and collaborated on local small-scale studies.

This research project is an intensive study in Boston, Chicago, and San Antonio to assess the well-being of low-income children and families in the post-welfare reform era. The project investigates the strategies families have used to respond to reform, in terms of employment, schooling or other forms of training, residential mobility, and fertility. Central to this project is a focus on how these strategies affect children's lives, with an emphasis on their health and development as well as their need for, and use of, social services.

EDRL is intended to inspire instructors who want to use ICPSR's data holdings and Bibliography of Data-Related Literature in new and interesting ways. Instructors are welcome to download and edit the exercises, as well as suggest other articles that might serve as useful entry articles for the exercises outlined here.

This site introduces students to quantitative social science research with a case study on social capital. Some of the concepts illustrated include replication, unit of analysis, level of measurement, analysis over time versus cross-sectional analysis, crosstabulation, creating an index, and correlation.

Since its inception, the Consortium has offered the ICPSR Summer Program as a complement to its data services. The Summer Program provides a comprehensive, integrated program of studies in research design, statistics, data analysis, and social science methodology. Its instructional environment stresses integration of methods of quantitative analysis within a broader context of substantive social research.