What is Available

You may request one or more of the following restricted data files. Please click on the name of each file you are interested in to see more details and documentation. 

Residential Context Files

  Brief description (follow link for more information) Time points
Geographic identifiers focal child's birth city (baseline only), mother's and father's state of residence, and stratum and psu (baseline-Year 15) (note: replicate weights are available on the public file in lieu of these) Sample city at Baseline, State at Baseline and Years 1, 3, 5, 9, and 15
Census tract measures Census-tract level demographic, housing, and income characteristics from the U.S. Census for the census tracts of mothers’ and fathers’ residence Baseline and Years 1, 3, 5, 9, and 15
Labor market and macroeconomic MSA-level Consumer Sentiment Index from the Survey of Consumers; and unemployment/labor force participation, and jobs by age/sex/education from the Bureau of Labor Statistics Baseline and Years 1, 3, 5, and 9
Opportunity Insights County-level measures of intergenerational mobility and characteristics correlated with intergenerational mobility from Chetty and Hendren's Opportunity Insights Baseline and Years 1, 3, 5, and 9
Gun Violence* Incident-level data on time and location of gun violence in 2014 to 2017 from the Gun Violence Archive Year 15
Uniform Crime Reports County-level crime rates (counts/county population) for all crimes, violent crimes, and property crimes from the FBI Unified Crime Reports database Baseline and Years 1, 3, 5, 9, and 15

*Note: the Gun Violence Archive data are linked to both residential address and to school address.

School Context Files

  Brief description (follow link for more information) Time points
School characteristics - NCES School-level characteristics including school type, pupil-to-teacher ratio, school’s racial composition, Title I funding, percent of students receiving free and reduced price lunch, and more from the National Center for Education Statistics Common Core Grade 1 and at Years 9 and 15
School characteristics - SEDA School district-level measures from 2009 to 2013 of educational inequality and characteristics correlated with educational inequality from the Stanford Educational Data Archive Years 9 and 15
School characteristics - CRDC School-level measures from 2009, 2011, and 2013 of school resources, disciplinary outcomes, and other characteristics related to school environments from the Civil Rights Data Collection Years 9 and 15

*Note: the Gun Violence Archive data are linked to both residential address and to school address.

Biological and Health Files

  Brief description (follow link for more information) Time points
Medical records 

Information for mothers and children regarding health during pregnancy and at birth from the birth hospitalization record

Baseline
Candidate genes

Candidate gene variables and telomere length for focal children and their biological mothers

Year 9
Genotype array

Genotype data on focal children. This genetic information can be linked to a limited subset of phenotype variables. To download this file, please request access through the dbGaP data archive here. You do not need to complete a restricted data application with CRCW. (Note: This file cannot be merged to other restricted use contract data or to the public FFCWS data.)

Years 9 and 15
Polygenic Scores

Polygenic scores for a variety of phenotypes, principal components, and analytic group flags for focal children. 

Year 9

 

Requests for adding new contextual data to the Restricted Use Contract Data

While the Fragile Families and Child Wellbeing Study offers Public and Restricted Use data which address a wide range of research topics, we recognize that some researchers may want to add new contextual data to our existing Restricted Use Contract Data. Therefore, we offer a service to merge new data based on FFCWS survey respondents’ residence or school with the purpose of: 1) helping researchers answer new research questions which cannot be resolved using the existing data, 2) expanding the study with the new merged data.

If you are interested in requesting to have new contextual data added to the FFCWS Restricted Use Contract Data, we recommend that you begin by reviewing the documentation for the wide variety of the files in the Public Data and Restricted Use Contract Data to ensure that your research question cannot be adequately addressed by the data that is available in our study.

Applying for merging new data is a two-step process including a preliminary application and the Restricted Use Contract full application. If you already have an active contract data license, please submit only the Preliminary application.

Preliminary application – Submit the New Data Preliminary Application Form with a draft of your structured abstract and a CV for each person who will be included in the application, to the Center for Research on Child Wellbeing (c/o ffdata@princeton.edu) in order to get preliminary approval.

The full application for adding new data is the same as the Restricted Use Contract Data full application with the exception of the application fee. Please see the How to Apply page for instructions.

The service fee for adding new data to the Restricted Use Contract Data starts at $3,000 and varies depending on the complexity of the data request. We will provide an estimate of the cost if your preliminary application is approved.