DDI 3.1 XML Schema Documentation (2009-10-18)
© DDI Alliance 2009 - licensed under the terms of the GNU Lesser General Public License

Schema Summary

datacollection.xsd

Structures a computational item by assigning a value to a variable. Target Namespace: ddi:datacollection:3_1 Defined Components: 114 global elements, 9 local elements, 46 complexTypes, 1 simpleType Default Namespace-Qualified Form: Local Elements: qualified; Local Attributes: unqualified Schema Location: http://www.ddialliance.org/DDI/schema/ddi3.1/datacollection.xsd, see XML source Imports Schemas (3): logicalproduct.xsd, reusable.xsd, xml.xsd Imported by Schemas (4): comparative.xsd, group.xsd, instance.xsd, studyunit.xsd

All Element Summary
ActionToMinimizeLosses	Describes action taken to minimize loss of data from the collection event. Type: IdentifiedStructuredStringType Content: complex, 5 attributes, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
AgencyOrganizationReference	Reference to an organization, defined in the organziation scheme, responsible for the operation. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Aggregation	Type: AggregationType Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
AlternateSequenceType	Type: CommandType Content: complex, 1 attribute, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
AssignedVariableReference	A reference to a variable to which the associated value in the Code element is assigned. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
AssociatedImage (in Instruction)	An image associated with the interviewer instruction, located at the provided URI. Type: xs:anyURI Content: simple Defined: locally within complexType InstructionType in datacollection.xsd, see XML source
AssociatedItems	Question items associated with the Question Item. Type: QuestionGroupType Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Used: never
CategoryDomain	Type: CategoryDomainType Content: complex, 3 attributes, 5 elements Subst.Gr: may substitute for element ResponseDomain Defined: globally in datacollection.xsd, see XML source Used: never
Characteristic	A significant characteristic of the data source that may effect understanding or collection of the data. Type: StructuredStringType Content: mixed, 3 attributes, 16 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
CleaningOperation	Describes a raw data cleaning operation. Type: OperationType Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Code	The Code which contains the value of the variable. Type: CodeType Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
CodeDomain	Type: CodeDomainType Content: complex, 3 attributes, 5 elements Subst.Gr: may substitute for element ResponseDomain Defined: globally in datacollection.xsd, see XML source Used: never
Coding	A description of the coding of the data within the process. Type: CodingType Content: complex, 5 attributes, 4 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
CollectionEvent	A set of metadata describing a data collection event. Type: CollectionEventType Content: complex, 5 attributes, 8 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
CollectionSituation	Describes the situation in which the data collection event takes place. Type: IdentifiedStructuredStringType Content: complex, 5 attributes, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ComputationItem	Type: ComputationItemType Content: complex, 7 attributes, 11 elements Subst.Gr: may substitute for element ControlConstruct Defined: globally in datacollection.xsd, see XML source Used: never
ConceptReference	A reference to the concept associated with the response to the question. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
ConditionalText	Type: ConditionalTextType Content: complex, 2 elements Subst.Gr: may substitute for element Text Defined: globally in datacollection.xsd, see XML source Used: never
ConstructName	Type: NameType Content: simple, 4 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ConstructSequence	Type: SpecificSequenceType Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ControlConstruct	The global element ControlConstruct serves as the head of a substitution group for describing the order and flow of questions and supporting information within a data collection instrument. Type: ControlConstructType Content: complex, 7 attributes, 9 elements Abstract: (may not be used directly in instance XML documents) Subst.Gr: may be substituted with 8 elements Defined: globally in datacollection.xsd, see XML source Used: at 9 locations
ControlConstructReference	Reference to an element in the substitution group headed by the abstract element ControlConstruct. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 4 locations
ControlConstructScheme	A set of control constructs maintained by an agency, and used in the instrument. Type: ControlConstructSchemeType Content: complex, 11 attributes, 8 elements Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
ControlConstructSchemeName	Type: NameType Content: simple, 4 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ControlConstructSchemeReference	Provides for inclusion by reference of external Control Construct Schemes. Type: SchemeReferenceType Content: complex, 6 attributes, 7 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ControlOperation	Describes a control operation. Type: OperationType Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
DataAppraisalInformation	Information about the data appraisal. Type: DataAppraisalInformationType Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
DataCollection	The DataCollection element contains all of the metadata about the data collection process of the study or studies being described. Type: DataCollectionType Content: complex, 11 attributes, 16 elements Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
DataCollectionDate	Provides a date or range of dates for the described data collection event as well as a cycle number when the collection is part of a series of data collection events. Type: DateType Content: complex, 1 attribute, 7 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
DataCollectionFrequency	Provides the intended frequency of data collection, for example monthly, yearly, weekly preferably using an optional controlled vocabulary in the attribute intendedFrequncy. Type: DataCollectionFrequencyType Content: complex, 1 attribute, 8 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
DataCollectionMethodology	Describes a methodology for data collection. Type: IdentifiedStructuredStringType Content: complex, 5 attributes, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
DataCollectionModuleName	Type: NameType Content: simple, 4 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
DataCollectorOrganizationReference	Reference to an organization, defined in the organization scheme, responsible for the data collection. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
DataSource	Describes a data source. Type: DataSourceType Content: complex, 4 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
DateTimeDomain	Type: DateTimeDomainType Content: complex, 5 attributes, 4 elements Subst.Gr: may substitute for element ResponseDomain Defined: globally in datacollection.xsd, see XML source Used: never
DependentVariableReference	Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
DeviationFromSampleDesign	Describes deviation from a sample design. Type: IdentifiedStructuredStringType Content: complex, 5 attributes, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
DisplayText	The string to be displayed in the instrument. Type: DynamicTextType Content: complex, 4 attributes, 1 element Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ElseConstructReference	A reference to the control construct which is triggered if the associated condition is not met. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ElseIf	Type: ElseIfType Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Expression	A computational expression used in the coding. Type: CodeType Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ExternalAid	A pointer to an exteral aid presented by the instrument such as a text card, image, audio, or audiovisual aid. Type: OtherMaterialType Content: complex, 7 attributes, 7 elements Defined: globally in datacollection.xsd, see XML source Used: at 3 locations
ExternalInformation	Reference to an external source of information used in the coding process, for example a value from a chart, etc. Type: OtherMaterialType Content: complex, 7 attributes, 7 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ExternalInstrumentLocation (in Instrument)	A reference to an external representation of the data collection instrument. Type: xs:anyURI Content: simple Defined: locally within complexType InstrumentType in datacollection.xsd, see XML source
ExternalInterviewerInstructionReference	External reference to an interviewer instruction not expressed as DDI XML. Type: ExternalInterviewerInstructionReferenceType Content: complex, 8 attributes, 7 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
GeneralInstruction	Coding instructions that pertain to data collection or data processing overall such as handling of non-response to questions, imputation practices, suppression rules, etc. Type: GeneralInstructionType Content: complex, 1 attribute, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
GenerationInstruction	Instructions for recodes, derivations from multiple question or variable sources, and derivations based on external sources. Type: GenerationInstructionType Content: complex, 1 attribute, 7 elements Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
GeographicDomain	Type: GeographicDomainType Content: complex, 5 attributes, 16 elements Subst.Gr: may substitute for element ResponseDomain Defined: globally in datacollection.xsd, see XML source Used: never
IfCondition	The condition which must be met to trigger the Then clause, expressed as a Coding. Type: CodeType Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
IfThenElse	Type: IfThenElseType Content: complex, 7 attributes, 13 elements Subst.Gr: may substitute for element ControlConstruct Defined: globally in datacollection.xsd, see XML source Used: never
IndependentVariableReference	Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
InitialValue	The initial value to which the LoopVariable is set. Type: CodeType Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Instruction	Type: InstructionType Content: complex, 7 attributes, 8 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
InstructionName	Type: NameType Content: simple, 4 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
InstructionText (in Instruction)	This provides the textual content of the instruction. Type: DynamicTextType Content: complex, 4 attributes, 1 element Defined: locally within complexType InstructionType in datacollection.xsd, see XML source
Instrument	A description of an instrument related to the data collection activity. Type: InstrumentType Content: complex, 11 attributes, 10 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
InstrumentName	Type: NameType Content: simple, 4 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
IntendedFrequency (in DataCollectionFrequency)	Documents the intended frequency of data collection, for example monthly, yearly, weekly, etc., preferably using an optional controlled vocabulary Type: CodeValueType Content: simple, 7 attributes Defined: locally within complexType DataCollectionFrequencyType in datacollection.xsd, see XML source
InterviewerInstructionReference	Reference to an interviewer instruction expressed as DDI XML. Type: InterviewerInstructionReferenceType Content: complex, 7 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
InterviewerInstructionScheme	Type: InterviewerInstructionSchemeType Content: complex, 11 attributes, 8 elements Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
InterviewerInstructionSchemeName	Type: NameType Content: simple, 4 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
InterviewerInstructionSchemeReference	Type: SchemeReferenceType Content: complex, 6 attributes, 7 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
IsOverride	Used when attribute of the containing GeneralInstruction isOverride equals true. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ItemSequenceType	Type: ItemSequenceTypeType Content: simple Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Label	Label for the response domain as a human-readable string. Type: InternationalStringType Content: simple, 3 attributes Defined: globally in datacollection.xsd, see XML source Used: at 5 locations
LiteralText	Type: LiteralTextType Content: complex, 2 elements Subst.Gr: may substitute for element Text Defined: globally in datacollection.xsd, see XML source Used: never
Loop	Type: LoopType Content: complex, 7 attributes, 14 elements Subst.Gr: may substitute for element ControlConstruct Defined: globally in datacollection.xsd, see XML source Used: never
LoopVariableReference	A reference to the variable (as used in the associated Codings) which is incremented or otherwise manipulated to meet the conditions stated in the LoopWhile condition. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
LoopWhile	The condition which must be met for the Loop's functioning to cease; when this condition is met, control is handed back to the containing control construct. Type: CodeType Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Method	Type: CodeValueType Content: simple, 7 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Methodology	Methodological metadata for the data collection. Type: MethodologyType Content: complex, 7 attributes, 8 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Mnemonic (type xs:string)	Allows for assigning a mnemonic name used to reference this item in a command. Type: xs:string Content: simple Defined: locally within complexType SourceReferenceType in datacollection.xsd, see XML source
ModeOfCollection	Describes the mode of collection. Type: IdentifiedStructuredStringType Content: complex, 5 attributes, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
MultipleQuestionItem	Describes a multiple-question question item. Type: MultipleQuestionItemType Content: complex, 7 attributes, 10 elements Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
MultipleQuestionItemName	Type: NameType Content: simple, 4 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
NumericDomain	Type: NumericDomainType Content: complex, 9 attributes, 5 elements Subst.Gr: may substitute for element ResponseDomain Defined: globally in datacollection.xsd, see XML source Used: never
Origin	A citation or URI indicating the origin of the data. Type: OriginType Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
OriginLocation (in Origin)	URI to the data source. Type: xs:anyURI Content: simple Defined: locally within complexType OriginType in datacollection.xsd, see XML source
OtherAppraisalProcess	Description of any other form of data appraisal. Type: StructuredStringType Content: mixed, 3 attributes, 16 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ProcessingEvent	Metadata regarding a processing event occurring as part of the data collection. Type: ProcessingType Content: complex, 5 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
QuestionConstruct	Type: QuestionConstructType Content: complex, 7 attributes, 14 elements Subst.Gr: may substitute for element ControlConstruct Defined: globally in datacollection.xsd, see XML source Used: never
QuestionIntent	The purpose of the question vis-a-vis the data being collected. Type: StructuredStringType Content: mixed, 3 attributes, 16 elements Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
QuestionItem	Acts as the head of a substitution group for a set of derived question items. Type: QuestionItemType Content: complex, 7 attributes, 10 elements Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
QuestionItemName	Type: NameType Content: simple, 4 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
QuestionReference	A reference to a question. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
QuestionScheme	Describes a set of questions used in the data collection. Type: QuestionSchemeType Content: complex, 11 attributes, 9 elements Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
QuestionSchemeName	Type: NameType Content: simple, 4 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
QuestionSchemeReference	Provides for inclusion by reference of one question scheme in another. Type: SchemeReferenceType Content: complex, 6 attributes, 7 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
QuestionText	The text of the question presented in the instrument. Type: DynamicTextType Content: complex, 4 attributes, 1 element Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
RepeatUntil	Type: RepeatUntilType Content: complex, 7 attributes, 11 elements Subst.Gr: may substitute for element ControlConstruct Defined: globally in datacollection.xsd, see XML source Used: never
RepeatWhile	Type: RepeatWhileType Content: complex, 7 attributes, 11 elements Subst.Gr: may substitute for element ControlConstruct Defined: globally in datacollection.xsd, see XML source Used: never
ResponseDomain	A response domain for a question item, used only as the head of a substitution group for the various derived types of response domains. Type: RepresentationType Content: complex, 3 attributes, 2 elements Abstract: (may not be used directly in instance XML documents) Subst.Gr: may be substituted with 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 8 locations
ResponseRate (in DataAppraisalInformation)	A response rate. Type: xs:string Content: simple Defined: locally within complexType DataAppraisalInformationType in datacollection.xsd, see XML source
ResponseSequence	Type: SpecificSequenceType Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ResponseText	The text of a response. Type: DynamicTextType Content: complex, 4 attributes, 1 element Defined: globally in datacollection.xsd, see XML source Used: at 1 location
ResponseUnit	The response unit. Type: InternationalStringType Content: simple, 3 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
SamplingError	The sampling error of the data. Type: StructuredStringType Content: mixed, 3 attributes, 16 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
SamplingProcedure	Describes a sampling procedure. Type: IdentifiedStructuredStringType Content: complex, 5 attributes, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Sequence	Type: SequenceType Content: complex, 7 attributes, 12 elements Subst.Gr: may substitute for element ControlConstruct Defined: globally in datacollection.xsd, see XML source Used: never
SourceDescription	Type: StructuredStringType Content: mixed, 3 attributes, 16 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
SourceQuestion	Reference to a question used in the coding process. Type: SourceReferenceType Content: complex, 6 attributes, 7 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
SourceType	SourceType allows for the provision of a term describing primary or secondary data sources, and may be from a controlled vocabulary. Type: CodeValueType Content: simple, 7 attributes Defined: globally in datacollection.xsd, see XML source Used: at 1 location
SourceVariable	Reference to a variable used in the coding process. Type: SourceReferenceType Content: complex, 6 attributes, 7 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
SourceVariableReference	A reference to a source variable used as an input in the preceding Expression. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: never
StandardWeight (in Coding)	A standard weighting factor used by all or a group of variables within the data set. Type: xs:float Content: simple Defined: locally within complexType CodingType in datacollection.xsd, see XML source
StatementItem	Type: StatementItemType Content: complex, 7 attributes, 11 elements Subst.Gr: may substitute for element ControlConstruct Defined: globally in datacollection.xsd, see XML source Used: never
StepValue	A Coding which is used to manipulate the LoopVariable after each iteration of the Loop's associated ControlConstruct element. Type: CodeType Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
StructuredMixedResponseDomain	ResponseDomains should be chosen that do NOT duplicate responses such as CodeSchemes with overlapping codes. Type: StructuredMixedResponseDomainType Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
SubQuestions	A group of question items forming a group of sub-questions. Type: QuestionGroupType Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
SubQuestionSequence	Prescribes the order in which the sub-questions should appear. Type: SpecificSequenceType Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Text	Text exists only to act as the head of a substitution group for the various types of derived text elements within the instrument. Type: TextType Content: complex, 1 element Abstract: (may not be used directly in instance XML documents) Subst.Gr: may be substituted with 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 3 locations
Text (in LiteralText)	The value of the static text string. Type: StructuredStringType Content: mixed, 3 attributes, 16 elements Defined: locally within complexType LiteralTextType in datacollection.xsd, see XML source
TextDomain	Type: TextDomainType Content: complex, 6 attributes, 4 elements Subst.Gr: may substitute for element ResponseDomain Defined: globally in datacollection.xsd, see XML source Used: never
ThenConstructReference	A reference to the control construct which should be triggered if the associated condition is met. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
TimeMethod	Describes how time fits into the data collection methodology. Type: IdentifiedStructuredStringType Content: complex, 5 attributes, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Type	A generic element for specifying a further classification of an object. Type: CodeValueType Content: simple, 7 attributes Defined: globally in datacollection.xsd, see XML source Used: at 2 locations
UntilCondition	The condition which must be met to stop the repeated operation of the Coding in the associated UntilConstruct. Type: CodeType Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
UntilConstructReference	A reference to the Coding which runs until the UntilCondition is met. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
VariableSet	Type: VariableSetType Content: complex, 5 attributes, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
VariableSetReference	Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
Weighting	Describes the weighting used in the process. Type: IdentifiedStructuredStringType Content: complex, 5 attributes, 2 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
WhileCondition	The condition which must be met to trigger the operation of the associated Coding. Type: CodeType Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location
WhileConstructReference	A reference to the Coding which is to be run when the associated condition has been met. Type: ReferenceType Content: complex, 6 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Used: at 1 location

Complex Type Summary
AggregationType	Describes the aggregation of a generation instruction. Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 3 elements Used: at 1 location
CategoryDomainType	Structures a response domain based on categorization. Content: complex, 3 attributes, 5 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
CodeDomainType	Describes a coded response domain. Content: complex, 3 attributes, 5 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
CodingType	A structure for the description of the computation used in the data collection or data processing such as recoding, derivations, or incorporation of external data sources. Content: complex, 5 attributes, 4 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 3 elements Used: at 1 location
CollectionEventType	Provides information regarding a data collection event. Content: complex, 5 attributes, 8 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 7 elements Used: at 1 location
ComputationItemType	Content: complex, 7 attributes, 11 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
ConditionalTextType	Text which has a changeable value, based on a condition expressed in Code. Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Includes: definition of 1 element Used: at 1 location
ControlConstructSchemeType	A set of control constructs maintained by an agency, and used in the instrument. Content: complex, 11 attributes, 8 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 5 elements Used: at 1 location
ControlConstructType	Provides the basic, extensible structure for control elements used in describing flow logic within the instrument. Content: complex, 7 attributes, 9 elements Abstract: (cannot be assigned directly to elements used in instance XML documents) Defined: globally in datacollection.xsd, see XML source Includes: definitions of 6 elements Used: at 9 locations
DataAppraisalInformationType	Metadata regarding the appraisal of the collected data. Content: complex, 3 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 3 elements Used: at 1 location
DataCollectionFrequencyType	Documents the intended frequency of data collection, for example monthly, yearly, weekly, etc., preferably using an optional controlled vocabulary in the IntendedFrequency element. Content: complex, 1 attribute, 8 elements Defined: globally in datacollection.xsd, see XML source Includes: definition of 1 element Used: at 1 location
DataCollectionType	Includes information about the data collection and post-collection processing. Content: complex, 11 attributes, 16 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 13 elements Used: at 1 location
DataSourceType	Describes a source for the data. Content: complex, 4 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 4 elements Used: at 1 location
DateTimeDomainType	Structures the response domain for a Date, Time, or DateTime response. Content: complex, 5 attributes, 4 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
DynamicTextType	Structures the behavior of dynamic or static text within the instrument. Content: complex, 4 attributes, 1 element Defined: globally in datacollection.xsd, see XML source Includes: definitions of 4 attributes and 1 element Used: at 4 locations
ElseIfType	Use for multiple branching from a single point in the flow logic represpented by the flow logic If, Then, ElseIf, Then, etc. Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
ExternalInterviewerInstructionReferenceType	External reference to an interviewer instruction not expressed as DDI XML. Content: complex, 8 attributes, 7 elements Defined: globally in datacollection.xsd, see XML source Includes: definition of 1 attribute Used: at 1 location
GeneralInstructionType	Coding instructions that pertain to data collection or data processing overall such as handling of non-response to questions, imputation practices, suppression rules, etc. Content: complex, 1 attribute, 3 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 1 attribute and 3 elements Used: at 1 location
GenerationInstructionType	For recodes, derivations from multiple question or variable sources, and derivations based on external sources. Content: complex, 1 attribute, 7 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 1 attribute and 7 elements Used: at 1 location
GeographicDomainType	Structures the response domain for a geographic point to ensure collection of relevant information. Content: complex, 5 attributes, 16 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
IfThenElseType	Provides an if-then-else construct, so that if the stated condition is met, the Then clause is triggered, and otherwise the Else clause is triggered. Content: complex, 7 attributes, 13 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 4 elements Used: at 1 location
InstructionType	A description of a particular interviewer instruction. Content: complex, 7 attributes, 8 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 5 elements Used: at 1 location
InstrumentType	Structures the metadata describing a collection instrument used in the data collection. Content: complex, 11 attributes, 10 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 7 elements Used: at 1 location
InterviewerInstructionReferenceType	Reference to an interviewer instruction expressed as DDI XML. Content: complex, 7 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Includes: definition of 1 attribute Used: at 1 location
InterviewerInstructionSchemeType	series of interviewer instructuctions including routing information to be displayed within the instrument, definitions, and explanations of terminology and questions. Content: complex, 11 attributes, 8 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 5 elements Used: at 1 location
LiteralTextType	Literal (static) text to be used in the instrument. Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Includes: definition of 1 element Used: at 1 location
LoopType	Structures a control construct which loops until a limiting condition is met. Content: complex, 7 attributes, 14 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 5 elements Used: at 1 location
MethodologyType	MethodologyType describes the methodology used for data collection. Content: complex, 7 attributes, 8 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 5 elements Used: at 1 location
MultipleQuestionItemType	Structures a multiple-question question item. Content: complex, 7 attributes, 10 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 7 elements Used: at 1 location
NumericDomainType	Structures the response domain for a numeric response. Content: complex, 9 attributes, 5 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
OperationType	Provides a structure for cleaning and control operations within a data collection process. Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 2 locations
OriginType	A citation or URI for the source of the data. Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
ProcessingType	ProcessingType provides a structure for describing the processing within data collection. Content: complex, 5 attributes, 6 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 5 elements Used: at 1 location
QuestionConstructType	Structures the construct which ties together questions and the programmatic logic of the control constructs. Content: complex, 7 attributes, 14 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 5 elements Used: at 1 location
QuestionGroupType	Structures a group of question items. Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 2 locations
QuestionItemType	Structures the QuestionItem, and provides a structure inherited by other derived question item types. Content: complex, 7 attributes, 10 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 7 elements Used: at 1 location
QuestionSchemeType	A set of questions maintained by an agency, and used in the instrument. Content: complex, 11 attributes, 9 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 6 elements Used: at 1 location
RepeatUntilType	Structures the control construct which allows a Coding to be repeated until a specified condition is met. Content: complex, 7 attributes, 11 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
RepeatWhileType	Structures a control construct which repeats while a specified condition is met. Content: complex, 7 attributes, 11 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
SequenceType	A sequence of operations expressed as control constructs performed by the instrument. Content: complex, 7 attributes, 12 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 3 elements Used: at 1 location
SourceReferenceType	Reference to a variable or question used in the deriviation or coding instruction. Content: complex, 6 attributes, 7 elements Defined: globally in datacollection.xsd, see XML source Includes: definition of 1 element Used: at 2 locations
SpecificSequenceType	Describes the ordering of items when not otherwise indicated. Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 3 locations
StatementItemType	A textual statement used in the Instrument. Content: complex, 7 attributes, 11 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
StructuredMixedResponseDomainType	ResponseDomains should be chosen that do NOT duplicate responses such as CodeSchemes with overlapping codes. Content: complex, 2 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location
TextType	Provides a structure to be inherited by derivation for elements belonging to the substitution group of which the Text element is the head. Content: complex, 1 element Abstract: (cannot be assigned directly to elements used in instance XML documents) Defined: globally in datacollection.xsd, see XML source Includes: definition of 1 element Used: at 3 locations
VariableSetType	Provides detail on a variable set of dependent and independent variables. Content: complex, 5 attributes, 3 elements Defined: globally in datacollection.xsd, see XML source Includes: definitions of 2 elements Used: at 1 location

Simple Type Summary
ItemSequenceTypeType	Describes the types of sequences of items. Defined: globally in datacollection.xsd, see XML source Used: at 1 location

XML schema documentation generated with DocFlex/XML SDK 1.7.2 using DocFlex/XML XSDDoc 2.1.0 template set