Optional
_handlingOptional
extensionAdditional content defined by implementations
Optional
handlingcontinuous | dichotomous | ordinal | polychotomous
Optional
idUnique id for inter-element referencing
Optional
modifierExtensions that cannot be ignored even if unrecognized
Optional
valueDescription for grouping of ordinal or polychotomous variables
Optional
valueDiscrete value for grouping of ordinal or polychotomous variables
Optional
valueRange of values for grouping of ordinal or polychotomous variables
Description of the variable
continuous | dichotomous | ordinal | polychotomous