Differences between fihhmngrs_dv over different data downloads
I was previously working with an older download of US that contained waves 1-7. I recently re-downloaded the data including waves 1-9 and comparing the fihhmngrs_dv variable across the two datasets there are appears to be differences. I tried to find some guidance on the website regarding this, but it mentions that no changes have been applied to the raw data.
Is there any reason why this variable might have changed (i.e. comparing the same household in the same wave across the different downloads of the data).
Apologies if this has been mentioned or asked previously, I have spent some time trying to understand this.
Thank you in advance!