Data Archive
The Future of Families and Child Wellbeing Study
Last updated: March 25, 2025
The Future of Families and Child Wellbeing Study (FFCWS) is a longitudinal birth cohort study of nearly 5,000 children born in large US cities between 1998 and 2000. Between 1998 through 2017, six waves of data have been collected from these children and their families, from birth through adolescence. The original study design called for a large oversample of births to unmarried parents, making the data a valuable resource for studying racial and economic disparities in health and wellbeing. The publicly available data includes information from: interviews with mothers and fathers (birth, ages 1, 3, 5, and 9), interviews with primary caregivers (ages 3, 5, 9, 15), child assessments (ages 3, 5, 9 and 15), child interviews (ages 9 and 15), child care provider interviews (age 3), and teacher interviews (age 5 and 9).
Latin American Migration Project
Last updated: June 22, 2021
The Latin American Migration Project (LAMP) is a collaborative research project based at Princeton University and the University of Guadalajara. The LAMP was born as an extension of the Mexican Migration Project (MMP), which was created in 1982 by an interdisciplinary team of researchers to advance our understanding of the complex processes of international migration and immigration to the United States. Data gathered by the MMP have been the source of a sizable amount of research on international migration. The purpose of the LAMP is to extend this research to migration flows originating in other Latin American countries.
Mexican Migration Project
Last updated: February 23, 2021
The Mexican Migration Project was created in 1982 by an interdisciplinary team of researchers to further our understanding of the complex process of Mexican migration to the United States.Since its inception, the MMP's main focus has been to gather social as well as economic information on Mexican-US migration.
Highly Skilled and Educated Immigrants
Last updated: February 23, 2017
The Project “International Migration of Talent and Highly Skilled and Educated to the U.S.” began in 2010 under the direction of Douglas S. Massey and Magaly Sanchez R., with funding from the MacArthur Foundation and Princeton University. Known in abbreviated form as the Highly Skilled and Educated (HSE) Immigrants Project, it was organized as a sub-project of the Latin American Migration Project (LAMP). Its design included two separate data collection efforts: the application of the LAMP’s ethnosurvey questionnaire to a selected sample of Venezuelan immigrants and in-depth interviews conducted with a sizeable number of HSE immigrants from Venezuela and several other sending nations.
Survey of Unemployed Workers in New Jersey
Last updated: February 17, 2015
The goal of this survey is to learn more about how unemployed workers spend and experience their time over their spell of unemployment. In addition, the survey aims at finding out more about how unemployed people search for jobs. For that purpose, unemployed workers were invited to participate in the study each week for a period of up to 12 weeks, and the long-term unemployed were surveyed for an additional 12 weeks. The survey is distinguished from past studies by the use of high-frequency longitudinal data on time use, job search activity and job offers. This unique data promises new insights into the process of job search and job finding, as it makes it possible to track time spent on job search activities over the spell of unemployment. The data for this survey were collected in the fall of 2009 and the beginning of 2010. The appendix in Krueger and Mueller (2011) describes in detail the survey design and methodology.
Wiki Surveys: Open and Quantifiable Social Data Collection
Last updated: January 28, 2015
The Wiki Surveys: Open and Quantifiable Social Data Collection project (WS) seeks to develop new online methods of social data collection. This data and code release enables others to replicate and extend the results in Salganik and Levy (2015)
Network Scale-up Method for Heavy Drug Users in Curitiba, Brazil
Last updated: November 16, 2011
This study was conducted to evaluate the network scale-up method for estimating the sizes of groups most at-risk for HIV/AIDS. Using 4 different data sources, 2 of which were from other researchers, the authors produced 5 estimates of the number of heavy drug users in Curitiba, Brazil.
The Game of Contacts
Last updated: December 14, 2010
The Game of Contacts data are collected as nested items in a behavioral surveillance study of heavy drug users in Curitiba, Brazil, which was conducted by the Brazilian Ministry of Health and the Oswaldo Cruz Foundation as part of the 10-city Brazillian Behavioral Surveillance Study of Heavy drug users (Bastos, in press). The items constitute a game-like activity that is called the game of contacts, which let authors estimates the visibility of social groups. The estimated social visibility estimates, in turn, are used in the estimation of the size of hard-to-count populations such as heavy drug users, as reported in Salganik et. Al. (2010).
Addis Ababa Mortality Surveillance Project
Last updated: October 20, 2010
The Addis Ababa Mortality Surveillance Project (AAMSP) is hosted by Addis Ababa University and revolves around a surveillance of burials at all known cemeteries of Addis Ababa, Ethiopia. Surveillance started in 2001 and is ongoing. Basic socio-demographic information including the lay report of the cause of death is collected for about 20,000 deaths a year. Verbal autopsy interviews are conducted with relatives or caretakers of the deceased for a random sample of records. The data that have been made available for public use pertain to the first five years of the surveillance, including a set of verbal autopsy interviews that were conducted in 2004.
Project 90 (Partial Data)
Last updated: April 26, 2010
Project 90 is a federally funded, US Centers for Disease Control (CDC) project focuses on HIV transmission risk in heterosexual and injecting drug user (IDU) populations. Its primarily goals are to identify and interview as much the target population as possible and to assess the size, structure and epidemic potential of the high-risk partnership network. For more details of the Project 90, see references below. Stephen Muth and John Potterat kindly provided the data in 2009, which became one of the two datasets analyzed by Prof. Matthew Salganik and his co-author in the paper, S. Goel and M. Salganik (2010) "Assessing respondent-driven sampling" Proceedings of the National Academy of Sciences of the United States of America (PNAS). The release of these data allows others to replicate the analyses and fulfills the requirement for the PNAS publication.
Immigrant Identity Project
Last updated: October 9, 2009
The Project Transnational Identities and behavior: an Ethnographic Comparison of First and Second Generation Latino Immigrants was realized under the direction of Douglas Massey and Magaly Sanchez R with funding from the Russell Sage Foundation (May 2002). The study, known in abbreviated form as the Immigrant Identity Project, was organized as a sub-project of two larger investigations: the Mexican Migration Project (http://mmp.opr.princeton.edu) and the Latin American Migration Project (http://lmp.opr.princeton.edu). The project sought to conduct in-depth interviews with immigrants residing in the northeastern United States , and was originally conceived to analyze whether the construction of immigrant identity conformed to the postulates of classic assimilation theory, segmented assimilation theory, or transnational theory, and to assess whether intergroup boundaries were being blurred or brightened.
Texas Higher Education Opportunity Project
Last updated: February 13, 2009
The Texas Higher Education Opportunity Project (THEOP) is a multi-year study that investigates college planning and enrollment behavior under a policy that guarantees admission to any Texas public college or university to high school seniors who graduate in the top decile of their class. The study collected administrative data on applications, admissions and enrollment from 12 colleges and universities in the state that differ in the selectivity of their admissions, and conducted a two-cohort longitudinal survey of sophomores and seniors who were enrolled in Texas public schools as of spring, 2002.
Success and Failure in Cultural Markets
Last updated: July 30, 2008
Success and Failure in Cultural Markets project was motivated by a puzzling aspect of contemporary cultural markets: successful cultural products, such as hit songs , bestselling books, and blockbuster movies, are orders of magnitude more successful than average; yet which particular songs, books, and movies will become the next "big thing" appears impossible to predict. The project proposed that both of these features, which appear to be contradictory at the collective level, can arise from the process of social influence at the individual level. To explore this possibility emprically a website was constructed where participants could listen to, rate, and download new music. Using a "multiple worlds" experimental design, the project found support for the ideas in a series of four experiments involving a total of 27,267 participants.
National Longitudinal Survey of Freshmen
Last updated: June 25, 2008
The National Longitudinal Survey of Freshmen (NLSF) was developed to provide comprehensive data to test different theoretical explanations for minority underachievement in higher education. The NLSF data are available for Wave 1, the baseline survey with detailed information on student’s background, such as family structure, neighborhood and school characteristics, at age 6, 12, and one year prior to entering college. Wave 1 also includes information about student’s preparation for college, peer networks, and racial/ethnic attitudes.
World Fertility Survey
Last updated: May 25, 2004
A collection of high-quality, internationally comparable surveys of human fertility conducted in 41 developing countries in the late seventies and early eighties.
Brazilian National Household Survey
Last updated: June 5, 2002
Brazil's National Household Sample Survey (Pesquisa Nacional por Amostra de Domicilios - PNAD) was conducted by Fundacao Instituto Brasileiro de Geografica e Estatistica (IBGE).
Demographic and Health Surveys
Last updated: June 3, 2002
The successor to WFS, which has completed three additional runs of surveys in the eighties and nineties.
