After the JD 2: A Longitudinal Study of Careers in Transition, 2007-2008, United States (ICPSR 33584)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2003 (ICPSR 4117)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2004 (ICPSR 4370)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2005 (ICPSR 4587)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2006 (ICPSR 22101)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2007 (ICPSR 24503)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2008 (ICPSR 29263)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2009 (ICPSR 33802)
American Community Survey (ACS): Three-Year Public Use Microdata Sample (PUMS), 2005-2007 (ICPSR 25042)
ANES 1968 Time Series Study (ICPSR 7281)
ANES 1972 Time Series Study (ICPSR 7010)
Center for American Women and Politics (CAWP) Recruitment Studies, 2008 (ICPSR 35244)
Civil Union Study 2000-2002, United States (ICPSR 31241)
Combined Generations Wave 1 and TransPop surveys, United States, 2016-2018 (ICPSR 38421)
This collection includes a combined dataset of the Generations study wave 1 (baseline) survey and the TransPop study transgender survey. The two studies have many overlapping variables, and they examined topics such as respondents' health outcomes and behaviors, experiences with discrimination, identity, and transition-related experiences. Data from these studies were merged to allow for analysis of the combined LGBT populations. This dataset has also been reweighted to be representative of these populations.
The complete Generations study data (baseline, wave 2, and wave 3 survey data) can be found under study number 37166, and the complete TransPop study data (transgender and cisgender survey data) can be found under study number 37938. For detailed information on the Generations and TransPop studies, including related publications, please refer to their respective DSDR/ICPSR study pages.
Detroit Area Study, 2001: Quality of Life in the Metro-Detroit Area (ICPSR 29441)
The 2001 Detroit Area Study (DAS) is a survey of over 4,300 adults in metro Detroit and addresses their perceptions, expectations, satisfaction, and behaviors associated with community living. The 2001 DAS, conducted in the spring and summer 2001, consisted of two parts. Initially, face-to-face interviews were conducted with a probability sample of 315 adult respondents (18 years of age and older) living in the tri-county area of Wayne, Oakland, and Macomb Counties. Subsequently, a questionnaire was mailed to a sample of adults throughout the seven counties; 4,077 were returned. Response rates were 59.8 percent for the face-to-face sample and 56.7 percent for the mail sample. In addition to survey responses, DAS 2001 compiled contextual information about the minor civil divisions (MCDs) or communities and environments associated with each respondent. Contextual information includes housing and demographic characteristics, land use characteristics, and other characteristics of the communities where respondents live (growth rates, employment, school information). Questions on the survey asked about residential history; public services and transportation; government and taxes; schools; police; parks, recreation and where kids play; shopping and other community issues; community participation and involvement; neighborhood and neighboring; housing and prospective mobility; safety; employment and journey to work; health and health care facilities; other Detroit and regional issues; demographics; and observations. The 2001 DAS presents a unique opportunity to explore and record changes over time by measuring people's opinions and behaviors and the conditions in their communities. The 2001 DAS is different from earlier DAS surveys in several ways. First, the study has been expanded from three to seven counties in southeast Michigan, often referred to as the metro Detroit area. That is, the study contacted residents in Livingston, Macomb, Monroe, Oakland, St. Clair, Wayne, and Washtenaw counties and in the city of Detroit. Second, the number of people contacted is greatly increased using a combination of face-to-face interviews and questionnaires sent by mail. Over 4,000 households in the region were contacted. Third, the questionnaires were designed in consultation with stakeholder groups representing government, industry, and nonprofit organizations in the region. Finally, indicators associated with the sampled households are being compiled and analyzed (along with the survey responses) using statistical and spatial analytic techniques including Geographic Information Systems (GIS).
Education Longitudinal Study (ELS), 2002: Base Year (ICPSR 4275)
The Future of Families and Child Wellbeing Study (FFCWS), Public Use, United States, 1998-2024 (ICPSR 31622)
The Future of Families and Child Wellbeing Study (FFCWS, formerly known as the Fragile Families and Child Wellbeing Study) follows a cohort of nearly 5,000 children born in large, U.S. cities between 1998 and 2000. The study oversampled births to unmarried couples; and, when weighted, the data are representative of births in large U.S. cities at the turn of the century. The FFCWS was originally designed to address four questions of great interest to researchers and policy makers:
- What are the conditions and capabilities of unmarried parents, especially fathers?
- What is the nature of the relationships between unmarried parents?
- How do children born into these families fare?
- How do policies and environmental conditions affect families and children?
The FFCWS consists of interviews with mothers, fathers, and/or primary caregivers at birth and again when children are ages 1, 3, 5, 9, 15, and 22. The parent interviews collected information on attitudes, relationships, parenting behavior, demographic characteristics, health (mental and physical), economic and employment status, neighborhood characteristics, and program participation. Beginning at age 9, children were interviewed directly (either during the home visit or on the telephone). The direct child interviews collected data on family relationships, home routines, schools, peers, and physical and mental health, as well as health behaviors.
A collaborative study of the FFCWS, the In-Home Longitudinal Study of Pre-School Aged Children (In-Home Study) collected data from a subset of the FFCWS Core respondents at the Year 3 and 5 follow-ups to ask how parental resources in the form of parental presence or absence, time, and money influence children under the age of 5. The In-Home Study collected information on a variety of domains of the child's environment, including: the physical environment (quality of housing, nutrition and food security, health care, adequacy of clothing and supervision) and parenting (parental discipline, parental attachment, and cognitive stimulation). In addition, the In-Home Study also collected information on several important child outcomes, including anthropometrics, child behaviors, and cognitive ability. This information was collected through interviews with the child's primary caregiver, and direct observation of the child's home environment and the child's interactions with his or her caregiver.
Similar activities were conducted during the Year 9 follow-up. At the Year 15 follow-up, a condensed set of home visit activities were conducted with a subsample of approximately 1,000 teens. Teens who participated in the In-Home Study were also invited to participate in a Sleep Study and were asked to wear an accelerometer on their non-dominant wrist for seven consecutive days to track their sleep (Sleep Actigraphy Data) and that day's behaviors and mood (Daily Sleep Actigraphy and Diary Survey Data).
An additional collaborative study collected data from the child care provider (Year 3) and teacher (Years 9 and 15) through mail-based surveys. Saliva samples were collected at Year 9 and 15 (Biomarker file and Polygenic Scores). The Study of Adolescent Neural Development (SAND) COVID Study began data collection in May 2020 following the onset of the COVID-19 pandemic. It included online surveys with the young adult and their primary caregiver.
The FFCWS began its seventh wave of data collection in October 2020, around the focal child's 22nd birthday. Data collection and interviews continued through January 2024. The Year 22 wave included a young adult (YA) survey with the original focal child and a primary caregiver (PCG) survey. Data were also collected on the children of the original focal child (referred to as Generation 3, or G3).
In 2017, the FFCWS team announced the Fragile Families (FF) Challenge, a collaborative effort in which participants were tasked with using machine learning methods and FFCWS data (Baseline to Year 9) to build a model that would predict six key outcomes at Year 15. Materials used in the FF Challenge have been archived in this collection.
Documentation for these files is available on the FFCWS website under Data and Documentation. For details of updates made to the FFCWS data files, please see the project's Data Alerts page.
Data collection for the Future of Families and Child Wellbeing Study was supported by the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) of the National Institutes of Health under award numbers R01HD36916, R01HD39135, and R01HD40421, as well as a consortium of private foundations.
Below is the citation for use of the FFCWS data accessed through ICPSR. For information on additional citation requirements when using FFCWS in publications, please refer to this FAQ on the FFCWS project site.
Generations: A Study of the Life and Health of LGB People in a Changing Society, United States, 2016-2019 (ICPSR 37166)
The Generations study is a five-year study designed to examine health and well-being across three generations of lesbians, gay men, and bisexuals (LGB). The study explored identity, stress, health outcomes, and health care and services utilization among LGBs in three generations of adults who came of age during different historical contexts. This collection includes baseline, wave 1, and wave 2 data collected as part of the Generations study.
The study aimed to assess whether younger cohorts of LGBs differed from older cohorts in how they viewed their LGB identity and experienced stress related to prejudice and everyday forms of discrimination, as well as whether patterns of resilience differed between different LGB cohorts. Additionally, the study sought to examine how differences in stress experience affected mental health and well-being, including depressive and anxiety symptoms, substance and alcohol use, suicide ideation and behavior, and how younger LGBs utilized LGB-oriented social and health services, relative to older cohorts.
In wave 2, respondents were re-interviewed approximately one year after completion of the baseline (wave 1) survey. Only respondents who participated in the original sample of participants were surveyed at wave 2 (i.e., the enhancement oversample was not included in the longitudinal design of this study).
In wave 3, respondents were re-interviewed approximately one year after the completion of the wave 2 survey.
Demographic variables collected as part of this study include questions related to age, education, race, ethnicity, sexual identity, gender identity, income, employment, and religiosity.
Harvard School of Public Health College Alcohol Study, 1997 (ICPSR 3163)
Harvard School of Public Health College Alcohol Study, 1999 (ICPSR 3818)
Harvard School of Public Health College Alcohol Study, 2001 (ICPSR 4291)
Health Information National Trends Survey (HINTS), 2007 (ICPSR 25262)
Longitudinal Study of American Youth, 1987-1994, 2007-2011, 2014-2017 (ICPSR 30263)
The Longitudinal Study of American Youth (LSAY) is a project that was funded by the National Science Foundation in 1985 and was designed to examine the development of: (1) student attitudes toward and achievement in science, (2) student attitudes toward and achievement in mathematics, and (3) student interest in and plans for a career in science, mathematics, or engineering, during middle school, high school, and the first four years post-high school. The relative influence parents, home, teachers, school, peers, media, and selected informal learning experiences had on these developmental patterns was considered as well.
The older LSAY cohort, Cohort One, consisted of a national sample of 2,829 tenth-grade students in public high schools throughout the United States. These students were followed for an initial period of seven years, ending four years after high school in 1994. Cohort Two, consisted of a national sample of 3,116 seventh-grade students in public schools that served as feeder schools to the same high schools in which the older cohort was enrolled. These students were followed for an initial period of seven years, concluding with a telephone interview approximately one year after the end of high school in 1994.
Beginning in the fall of 1987, the LSAY collected a wide array of information including: (1) a science achievement test and a mathematics achievement test each fall, (2) an attitudinal and experience questionnaire at the beginning and end of each school year, (3) reports about education and experience from all science and math teachers in each school, (4) reports on classroom practice by each science and math teacher serving a LSAY student, (5) an annual 25-minute telephone interview with one parent of each student, and (6) extensive school-level information from the principal of each study school.
In 2006, the NSF funded a proposal to re-contact the original LSAY students (then in their mid-30's) to resume data collection to determine their educational and occupational outcomes. Through an extensive tracking activity which involved: (1) online tracking, (2) newsletter mailing, (3) calls to parents and other relatives, (4) use of alternative online search methods, and (5) questionnaire mailing, more than 95 percent of the original sample of 5,945 LSAY students were located or accounted for. In addition to re-contacting the students, the proposal defined a new eligible sample of approximately 5,000 students and these young adults were asked to complete a survey in 2007. A second survey was conducted in the fall of 2008 that sought to gather updated information about occupational and education outcomes and to measure the civic scientific literacy of these young adults, in which to date more than 3,200 participants have responded. A third survey was conducted in the fall of 2009 that sought to gather updated information about occupational and education outcomes and to measure the participants' use of selected informal science education resources, in which to date more than 3,200 participants have responded. A fourth survey was conducted in the fall of 2010 that sought to gather updated information about occupational and education outcomes, as well as provided questions about the participants' interactions with their children, in which to date more than 3,200 participants have responded. Finally, a fifth survey was conducted in the fall of 2011 that sought to gather updated information about education outcomes and included an expanded occupation battery for all participants, as well as an expanded spousal information battery for all participants. The 2011 questionnaire also included items about the 2011 Fukushima incident in Japan along with attitudinal items about nuclear power and global climate change. To date approximately 3,200 participants responded to the 2011 survey.
There were no surveys conducted in 2012 or 2013. Beginning in 2014 the LSAY was funded by the National Institute on Aging for five years. This data release adds the 2017 data to the previous data release that included data through 2016.
The public release data files include information collected from the national probability sample students, their parents, and the science and mathematics teachers in the students' schools. The data covers the initial seven years, beginning in the fall of 1987, as well as the data collected in the 2007, 2008, 2009, 2010, 2011, 2014, 2015, 2016, and 2017 questionnaires.
Part 1: LSAY Merged Cohort (Base File) contains student and parent data from both cohorts of the LSAY from 1987-1994 and student follow-up data from 2007-2011 and 2014-2017. Additionally, Parts 2 - 5 contain information gathered from two teacher background questionnaires and two principal questionnaires from 1987-1994.
Memorialization and Community Project, Alabama, 2018 - 2019 (ICPSR 39061)
This study focuses on understanding how the National Memorial for Peace and Justice (NMPJ), the first large-scale memorial to black or African American victims of lynching, affects the immediate community surrounding it. Memorialization in the United States has been a growing trend over the past few decades. To date, there has been limited research on how memorials affect relationships between groups and how they impact the attitudes and behaviors of individuals. This study explores how the representation of past racial violence is interpreted and responded to by those who regularly interact with it. The study helps to understand better how the practice of memorialization mediates how our nation grapples with the darkest moments of its past.
The data include the following:
- Survey data: A four-wave longitudinal survey of the local city's residents was conducted pre- and post NMPJ's opening to capture social and political attitudes. Additionally, a two-wave longitudinal survey was conducted with two comparison groups in Alabama
- Secondary data: Montgomery City Police Department crime data concerning reported incidents that occurred between Oct. 27, 2017 and Oct. 31, 2018. The collection was restricted to incidents that occurred within two miles of NMPJ
- Secondary data: Links to and metadata of 619 American media stories in English addressing NMPJ, which were published between Aug. 16, 2016 and Jan. 17, 2020
Midlife in the United States (MIDUS Refresher 2): Milwaukee African American Sample, 2023-2024 (ICPSR 39583)
In 2012-2013, the MIDUS Milwaukee Refresher study recruited a sample of 508 Milwaukee African American adults, aged 25 to 64, designed to replenish the original MIDUS Milwaukee 1 survey that was designed to increase the number of racial minorities in 2005. The MIDUS Milwaukee Refresher survey employed the same comprehensive assessments (demographic, psycho-social, and physical and mental health) as those on the existing MIDUS sample, with additional questions about the effect of the Great Recession in 2008-09.
In 2023-2024, the second wave of survey data was collected from 327 longitudinal Refresher Milwaukee participants, including the questions (1) repeated from the Refresher 1, (2) new impacts of the COVID-19 pandemic replacing the questions related to the Great Recession in the Refresher 1, and (3) the additional questions in selected areas (e.g., AD8, IADL, family history of dementia). This new longitudinal MIDUS Refresher Milwaukee data allow examination of period effects on health and well-being related to the COVID-19 pandemic by comparing the pre-pandemic MIDUS Refresher Milwaukee 1 data with the post-pandemic MIDUS Refresher Milwaukee 2 data. Further, the longitudinal MIDUS Refresher datasets (wave 1 and wave 2) allow investigation of the two major macro-level historic events, the Great Recession and the COVID-19 pandemic, on health and well-being.
National Survey of Substance Abuse Treatment Services (N-SSATS), 2000 (ICPSR 3436)
The National Survey of Substance Abuse Treatment Services (N-SSATS) is designed to collect information from all facilities in the United States, both public and private, that provide substance abuse treatment. N-SSATS provides the mechanism for quantifying the dynamic character and composition of the United States substance abuse treatment delivery system. The objectives of N-SSATS are to collect multipurpose data that can be used to assist the Substance Abuse and Mental Health Services Administration (SAMHSA) and state and local governments in assessing the nature and extent of services provided and in forecasting treatment resource requirements, update SAMHSA's Inventory of Substance Abuse Treatment Services (I-SATS), analyze general treatment services trends, and generate the National Directory of Drug and Alcohol Abuse Treatment Programs and its online equivalent, the Substance Abuse Treatment Facility Locator.
Data are collected on topics including facility operation, services offered (assessment, substance abuse therapy and counseling, testing, transitional, and ancillary), primary focus (substance abuse, mental health, both, general health, other), hotline operation, Opioid Treatment Programs and medication dispensed, languages in which treatment is provided, type of treatment provided, number of clients (total and under age 18), number of beds, types of payment accepted, sliding fee scale, special programs offered, facility accreditation and licensure/certification, and managed care agreements.
National Survey of Substance Abuse Treatment Services (N-SSATS), 2003 (ICPSR 4099)
The National Survey of Substance Abuse Treatment Services (N-SSATS) is designed to collect information from all facilities in the United States, both public and private, that provide substance abuse treatment. N-SSATS provides the mechanism for quantifying the dynamic character and composition of the United States substance abuse treatment delivery system. The objectives of N-SSATS are to collect multipurpose data that can be used to assist the Substance Abuse and Mental Health Services Administration (SAMHSA) and state and local governments in assessing the nature and extent of services provided and in forecasting treatment resource requirements, update SAMHSA's Inventory of Substance Abuse Treatment Services (I-SATS), analyze general treatment services trends, and generate the National Directory of Drug and Alcohol Abuse Treatment Programs and its online equivalent, the Substance Abuse Treatment Facility Locator.
Data are collected on topics including facility operation, services offered (assessment, substance abuse therapy and counseling, pharmacotherapies, testing, transitional, ancillary), primary focus (substance abuse, mental health, both, general health, other), hotline operation, Opioid Treatment Programs and medication dispensed, languages in which treatment is provided, type of treatment provided, number of clients (total and under age 18), number of beds, types of payment accepted, sliding fee scale, special programs offered, facility accreditation and licensure/certification, and managed care agreements.
National Survey of Substance Abuse Treatment Services (N-SSATS), 2004 (ICPSR 4256)
The National Survey of Substance Abuse Treatment Services (N-SSATS) is designed to collect information from all facilities in the United States, both public and private, that provide substance abuse treatment. N-SSATS provides the mechanism for quantifying the dynamic character and composition of the United States substance abuse treatment delivery system. The objectives of N-SSATS are to collect multipurpose data that can be used to assist the Substance Abuse and Mental Health Services Administration (SAMHSA) and state and local governments in assessing the nature and extent of services provided and in forecasting treatment resource requirements, update SAMHSA's Inventory of Substance Abuse Treatment Services (I-SATS), analyze general treatment services trends, and generate the National Directory of Drug and Alcohol Abuse Treatment Programs and its online equivalent, the Substance Abuse Treatment Facility Locator.
Data are collected on topics including facility operation, services offered (assessment, substance abuse therapy and counseling, pharmacotherapies, testing, transitional, ancillary), primary focus (substance abuse, mental health, both, general health, other), hotline operation, Opioid Treatment Programs and medication dispensed/prescribed, languages in which treatment is provided, type of treatment provided, number of clients (total and under age 18), number of beds, types of payment accepted, sliding fee scale, special programs offered, facility accreditation and licensure/certification, and managed care agreements.
National Transgender Discrimination Survey, [United States], 2008-2009 (ICPSR 37888)
This study brings to light what is both patently obvious and far too often dismissed from the human rights agenda. Transgender and gender non-conforming people face injustice at every turn: in childhood homes, in school systems that promise to shelter and educate, in harsh and exclusionary workplaces, at the grocery store, the hotel front desk, in doctors' offices and emergency rooms, before judges and at the hands of landlords, police officers, health care workers and other service providers.
The National Gay and Lesbian Task Force and the National Center for Transgender Equality are grateful to each of the 6,450 transgender and gender non-conforming study participants who took the time and energy to answer questions about the depth and breadth of injustice in their lives. A diverse set of people, from all 50 states, the District of Columbia, Puerto Rico, Guam and the U.S. Virgin Islands, completed online or paper surveys. This tremendous gift has created the first 360-degree picture of discrimination against transgender and gender non-conforming people in the U.S. and provides critical data points for policymakers, community activists and legal advocates to confront the appalling realities documented here and press the case for equity and justice.
These data provide information on discrimination in every major area of life, including housing, employment, health and health care, education, public accommodation, family life, criminal justice and government identity documents, and demographic information such as citizenship, race, ethnicity, employment, and income. In virtually every setting, the data underscores the urgent need for policymakers and community leaders to change their business-as-usual approach and confront the devastating consequences of anti-transgender bias.
Demographic information includes race, ethnicity, gender identity, sexual orientation, education, income, U.S citizenship, household size, and relationship status.
The public-use dataset was created in an earlier version of Stata that truncated write-in responses after 244 characters. The non-truncated write-in responses, plus Q10 zip codes and the essay responses to Q70, are included in the restricted-use dataset.
Positive Connections: Connecting HIV-Infected Patients to Care, 2004-2006 [United States] (ICPSR 22482)
Retention Challenges for HIV-Infected Primary Care Patients 2001-2004 [United States] (ICPSR 22220)
Social Capital and Children's Development: A randomized controlled trial conducted in 52 schools in Phoenix and San Antonio, 2008-2015 (ICPSR 35481)
The Social Capital and Children's Development data were collected in a study of the causal effects of social capital on levels and inequalities of children's social and cognitive development during the early elementary years. The study included 52 schools in Phoenix and San Antonio, including 3,084 first graders and their families, and over 200 teachers, with half the schools randomly selected for the intervention and half serving as controls. Children from low-income Latino families were a special focus of the study. The experimental design of this study allowed for testing of the causal role of social capital. Social capital here refers to trust and shared expectations embedded in social networks of parents, teachers, and children. For young children, social capital operates primarily through their relationships with their parents, enhancing development through mechanisms of social support and social control.
The research design was experimental: social capital was manipulated through a well-tested randomized intervention, Families and Schools Together (FAST), that enhanced social capital among parents, teachers, and children through an intensive after-school program and a 2-year follow-up program. FAST is intended to reduce parental isolation, enhance family engagement with schools, and strengthen family functioning; that is, to increase social capital between families and schools, among families, and within families to improve children's education and life-long outcomes. Key aspects of child development were assessed, including (a) social skills and problem behavior from standardized behavioral ratings by parents and teachers, and (b) grade retention, attendance rates, and third-grade reading and mathematics scores from school records. Social capital was measured with repeated surveys of teachers and parents that address the extent of social networks, parent involvement, trust, and shared expectations among parents, between parents and schools, and between parents and children. Demographic variables of this study include native language, years in the United States, date of birth/age, race/ethnicity, gender, and household composition.
Social Justice Sexuality Project: 2010 National Survey, including Puerto Rico (ICPSR 34363)
The Social Justice Sexuality Project (SJS) is one of the largest national surveys of Black, Latina/o, Asian and Pacific Islander, and multiracial lesbian, gay, bisexual, and transgender (LGBT) people. With over 5,000 respondents, the final sample includes respondents from all 50 states; Washington, DC, and Puerto Rico; in rural and suburban areas, in addition to large urban areas; and from a variety of ages, racial/ethnic identities, sexual orientations, and gender identities. The purpose of the SJS Project is to document and celebrate the experiences of lesbian, gay, bisexual and transgender (LGBT) people of color. All too often, when we think about LGBT people of color, it's from a perspective of pathology. In contrast, the SJS Project is designed and dedicated to describing a more dynamic experience. It's a knowledge-based study that investigates the sociopolitical experiences of this population around five themes: racial and sexual identity; spirituality and religion; mental and physical health; family formations and dynamics; civic and community engagement. Demographic variables include: race/ethnicity, sexual orientation, gender identity, age, education, religion, household, income, height, weight, location, birthplace, and political affiliation.
Additional information about the SJS Project can be found on the Social Justice Sexuality Project Web site.
Study of Women's Health Across the Nation (SWAN), 2005-2007: Visit 09 Dataset (ICPSR 32721)
Suburban Immigrant Koreans in Bergen County, New Jersey, 2004 (ICPSR 23545)
Immigrant communities have been an indispensable element of United States metropolitan life, often playing the role of a way station on a long journey of assimilation. Reflecting this, a linear spatial assimilation theory asserts that immigrants settle initially in a segregated urban ethnic enclave and disperse as they achieve economic, social, and cultural assimilation. The growth of suburban immigrant communities over the last couple of decades, however, challenges this traditional notion; suburban residency is no longer the final stage of assimilation. For many new immigrants, suburbia has become the first stop rather than an eventual destination. Furthermore, transitory immigrant communities are not necessarily located in urban areas. Dispersed immigrant's practical needs can now be met by suburban ethnic enclaves. This points to spatial assimilation without the attenuation of ties to ethnic businesses, jobs, shopping malls, churches, and social service facilities.
The study examines this spatial dispersion without diminishing ethnic ties, that is, without ethnic attenuation. More specifically, it compares Korean households at varying degrees of spatial dispersion (i.e., concentrated, dispersed, and highly dispersed) and their corresponding job, consumption, religious, and social linkages to ethnic enclaves both in the suburbs and the central city. To do so, the study focused on the current ethnic linkages of dispersed Korean suburban immigrant households in Bergen County, New Jersey. Korean immigrants are a highly suburbanized group and are generally considered a challenge to the traditional spatial assimilation model. They, however, have not been extensively researched in this context. In addition, Bergen County, NJ is the largest and fastest growing suburban settlement of Korean immigrants in the New York metropolitan area. As such, it offers an unusual opportunity to examine the simultaneous occurrence of spatial dispersion and ethnic concentration.
Methodologically, the study consisted of two tasks. The first task investigated how and why Bergen County's Korean households are spatially dispersed based on 1980, 1990, and 2000 aggregate Census data and 1990 and 2000 Public-Use Microdata Sample Data. The second task examined why and to what extent Korean households in the suburbs are linked to ethnic centers. This information was collected from a telephone survey of Korean households in Bergen County in 2004.
Survey of Holt Adoptees and Their Families, 2005 (ICPSR 4637)
TransPop, United States, 2016-2018 (ICPSR 37938)
The TransPop study is the first national probability sample of transgender individuals in the United States (it also includes a comparative cisgender sample). A primary goal of this study was to provide researchers with a representative sample of transgender people in the United States. The study examines a variety of health-relevant domains including health outcomes and health behaviors, experiences with interpersonal and institutional discrimination, identity, transition-related experiences, and basic demographic characteristics (age, race/ethnicity, religion, political party affiliation, marital status, employment, income, location, sex, gender, and education).
Co-investigators (in alphabetical order): Walter O. Bockting, Ph.D. (Columbia University); Jody L. Herman, Ph.D. (UCLA); Sari L. Reisner, Ph.D. (Harvard University and The Fenway Institute, Fenway Health).