In the notes about the variable Religion, it makes reference to a variable called ReligDer – I presume that this variable is only available on the Master file?
Subject matter explained that: RELIG is the name of the original variable in the master file.
RELIGDER is the name of a derived (aggregated) version of RELIG, and is in the master file. We use that RELIGDER version and aggregate it even more to create this RELIGION variable in the HPUMF.
So yes, the first sentence of the description is a bit misleading... it would be more correct to say:
“RELIGION is the aggregated version of RELIGDER which is the aggregated version of the variable RELIG (detailed responses).”