Create a std_version object that identifies a specific standardization
version for a neuropsychological test. This is the base class for
method-specific versions (e.g., norms-based or regression-based).
Arguments
- scores_class
A single non-empty string giving the
npsych_scoressubclass this version applies to (e.g.,"MOCATOTS").- method_name
A single non-empty string identifying the standardization method (e.g.,
"norms","regression").- version_id
A single non-empty string uniquely identifying this version within its method and scores class.
- description
An optional single string describing the version.