For the TIG Product Impact on Individual Health use case, applicants may collect free-text data on a CRF to supplement a standard field. A common example is collection using a list of choices with a field to collect "Other, specify". In such cases, collected free-text will be populated in the domain based on the scope or role of the variable used to represent data from the standard collection field.
- Grouping Qualifier for variables which are used to group together a collection of observations within the same domain.
- Result Qualifier for variables which describe the specific results associated with the topic variable in a Findings dataset.
- Synonym Qualifier for variables which specify an alternative name for a particular variable in an observation.
- Record Qualifier for variables which define additional attributes of the observation record as a whole, rather than describing a particular variable within a record
- Variable qualifiers for variables which are used to further modify or describe a specific variable within an observation and are only meaningful in the context of the variable they qualify.
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