Controlled Vocabularies

The CLOSER project uses a number of controlled vocabularies which are either DDI standard or CLOSER created. They are agreed sets of descriptions for parts of the project. Please refer to each individual page for more details.

Controlled VocabularyDescriptionSource
Analysis Unit (Question)The unit being analysedCLOSER
Analysis Unit (Study)The unit being analysedDDI

Collection Methods

The procedure, technique, or mode of inquiry used to attain the data.DDI
Commonality TypeType of commonality between itemsCLOSER
The person that provided the information for the instrument (not to be confused with DDI Response Unit).CLOSER
Kind of DataThe kinds of data included in a sweep.CLOSER
Life Stage

Phases of the participants life used to categorise the instruments (not to be confused with DDI LifecycleEventType).



The standard internet MIME type used by processing applications for usage with question External Aids.CLOSER


The subject area the questions and variables map to.CLOSER

Type of Material

The type of material being used with question External Aids.CLOSER
Use ConditionA list of the types of access arrangement for the data.CLOSER
Variable SourceA description of the type of instrument being used.CLOSER