- How often are data released?
- Do I need to update all of my files whenever a new wave of the BHPS is released?
The data are released to the Data Archive each Spring, approximately one year after the end of fieldwork for that wave. We advise all BHPS users to update all waves of data with each subsequent wave’s release as various corrections or updates to previous releases may have taken place. With each release, we provide specific details of corrections or alterations to previous releases in a special section of the data documentation called “Help for Old Friends”. Also, cross-wave data files – xWAVEDAT, xWAVEID and xWLSTEN – are always updated with new information for each wave. For these reasons, we advise updating all files with each annual release of BHPS data.