Researchers Data Dictionary in List Form
rdd.RdResearchers Data Dictionary in List Form
Format
rdd
-
allowable values, and codes. This is created from
from the .csv version of https://files.alz.washington.edu/documentation/uds3-rdd.pdfthis PDF,
which is made available to researcher upon acceptance of the data request,
with the addition of some entries calculated based on the NACC variables.
Each entry of the list has three entries:
- range
For numeric variables, the smallest and largest values allowable (that are not error codes). For non-numeric variables, NULL
- codes
Named vector where entries are allowed codes and names are labels. For example, for the total score for copy of Benson figure, the value of
95is in the vector with the name "Physical problem".- short_descriptor
The short descriptor as given in the PDF linked above.