Data Alerts

February 6, 2018

Telomere length variables for mothers and children from the Year 9 wave have now been released and are available through our contract data process as part of the genetic data file. These variables serve as an indicator of biological aging at the cellular level, and are measured in kilo base pairs. To learn more about these data, please visit our “Contract Data” page on genetic data.


January 19, 2018

A data file from the Year 15 wave of data collection is now available through the Princeton University Office of Population Research Data Archive. STATA, SAS, and SPSS versions of this file can be downloaded and merged with files from previous waves. This new file contains survey data from the primary caregiver (PCG) and teen interviews as well as the in-home assessments and observations. Additionally, files from the Fragile Families Challenge (FFC) are now available through the Princeton University Office of Population Research Data Archive for replication and educational projects. See our documentation page for more information about these files. 

Year 15 versions of the Geographic, Contextual, and School data files are now available through the contract data process. See our Contract Data page for more details.


June 29, 2015

A file with genetic data on focal children and their biological mothers, collected during the in-home assessments at the Year 9 follow-up wave, is now available through our restricted data use contract process.


March 4, 2015

A contextual characteristics file with Census tract-level data that correspond to the current residence of respondents at each wave (including Years 5 & 9) is now available through our restricted data use contract process.


August 12, 2013


A file with Year 9 follow-up wave national and city-level weights are now available (Stata, SAS, SPSS) through the Princeton University Office of Population Research Data Archive. 


November 3, 2011


A data file from the Year 9 wave of data collection is now available through the Princeton University Office of Population Research Data Archive. STATA, SAS, and SPSS versions of this file can be downloaded and merged with files from previous waves. This new file contains survey data from the core biological mother and father, primary caregiver, child, and teacher interviews, as well as data from the in-home assessments and observations. See our documentation page for more information about these files. 


June 26, 2006

m3c41a – This variable is not an accurate indicator of mother reports of father in prison at the Year 1 interview. It is possible the reports in this variable are from the father contact sheet, but we are not able to confirm this information. Therefore, users should rely on other reports of father incarceration.