Object specifications for storing and processing response in assessments (see schema id for version) documentation

Object specifications for storing and processing response in assessments (see schema id for version)

After the assessment is finished, the response data are to be processed in various ways. The data structures describe here are part of interface specifications of IQB.

Go to the Schema section of this document and select one schema. Expand all nodes and explore.

Operations

SEND iqb_data_structures
Operation IDPlease select one schema
Accepts the following message:
select_schema
Message IDselect_schema
Examples

Schemas

object
uid: response@iqb-standard@1.3
Data structure produced by verona players

id
required
string
must match: ^[0-9a-zA-Z_]+$
Identifier for the data source (variable)

state
required
string
Status as stage in the workflow of creating and coding a variable's value

Allowed values:
"UNSET"
"NOT_REACHED"
"DISPLAYED"
"VALUE_CHANGED"
"DERIVE_ERROR"
"NO_CODING"
"INVALID"
"CODING_INCOMPLETE"
"CODING_ERROR"
"CODING_COMPLETE"
required
anyOf
array<string | null>
Items:
string | null
array<number | null>
Items:
number | null
array<boolean | null>
Items:
boolean | null
Or to undefined:
number
Or to undefined:
string
Or to undefined:
null
Or to undefined:
boolean
subform
string
If variables i. e. data source ids are not unique in the unit, 'subform' can specify the sub object related to the specific variable.

code
integer
Code representing the category of the value after coding process.

score
integer
This value represents the result evaluation of the code after coding process.

Additional properties are allowed.
array<object>
uid: coding-scheme@iqb-standard@2.0
Data structure to specify all processing steps of response data in order to get coded and scored data for analyses.

id
required
string
must match: ^[0-9a-zA-Z_]+$
Identifier for the variable. In case of a scheme for a base variable, this id is identical with the source variable's id. In case of derivation, the processing data create a new derived variable. All ids of a response scheme should be unique.

label
string
Some additional info for UI

sourceType
required
string
CONCAT means concatenate all source codes as string with delimiter '_', SUM calculates a sum from all source codes or scores.

Allowed values:
"BASE"
"COPY_VALUE"
"CONCAT_CODE"
"SUM_CODE"
"SUM_SCORE"
"UNIQUE_VALUES"
"SOLVER"
object
Parameters to specify the derive method

solverExpression
string
If sourceType 'solver', this expression is evaluated when deriving. Placeholder for variables are in curly brakes.

Examples values:
"${01}*${03}-100"
array<string>
Some options to change value or status

Items:
string
Allowed values:
"TO_LOWER_CASE"
"TO_NUMBER"
"REMOVE_ALL_SPACES"
"REMOVE_DISPENSABLE_SPACES"
"TAKE_DISPLAYED_AS_VALUE_CHANGED"
"SORT"
Additional properties are allowed.
array<string>
Items:
string
must match: ^[0-9a-zA-Z_]+$
array<string>
This parameter defines what (pre)processing should be done.

Items:
string
Allowed values:
"IGNORE_CASE"
"IGNORE_ALL_SPACES"
"IGNORE_DISPENSABLE_SPACES"
"SORT_ARRAY"
"REPLAY_REQUIRED"
"ATTACHMENT"
fragmenting
string
Regular expression to get fragments out of the value if of type string

manualInstruction
string
Instructions for manual coding.

codeModel
string
Info for applications to simplify UI

Allowed values:
"NONE"
"CHOICE"
"VALUE_LIST"
"NUMBER"
"MANUAL"
array<string>
Items:
string
array<object>
required
oneOf
If this code's rules/instructions match, the code and score is taken for the response. If the code id is of value 'null', no code or score is taken. Instead, the state 'INVALID' will be set.

Adheres to undefined:
integer
Or to undefined:
null
label
string
score
integer
manualInstruction
string
Instructions for manual coding.

ruleSetOperatorAnd
boolean
If true, all rule sets must match to take that code. Otherwise (default: false), one matching rule set will satisfy.

array<object>
anyOf
Can adhere to undefined:
integer
Refers to a specific position in the value array [0..n].

Or to undefined:
string
Refers to any position in the value array or to the sum of all array values.

Allowed values:
"ANY"
"SUM"
ruleOperatorAnd
boolean
If true, all rules must match to take that code. Otherwise (default: false), one matching rule will satisfy.

required
array<object>
fragment
integer
Refers to a specific fragment of the value [0..n] or to any -1.

method
required
string
See separate documentation

Allowed values:
"MATCH"
"MATCH_REGEX"
"NUMERIC_MATCH"
"NUMERIC_RANGE"
"NUMERIC_LESS_THAN"
"NUMERIC_MORE_THAN"
"NUMERIC_MAX"
"NUMERIC_MIN"
"NO_OTHER_MATCHES"
"IS_UNIQUE_IN_ARRAY"
"IS_EMPTY"
"ELSE"
"IS_NULL"
"IS_TRUE"
"IS_FALSE"
array<string>
Depending on the method, additional parameter(s) is needed. See separate documentation

Items:
string
object
uid: missing@iqb-standard@1.0
Data structure to describe a missing state in the final data set.

id
required
string
must match: ^[A-Za-z_]+$
Identifier for missing

Examples values:
"mnr"
"mir"
"mbo"
label
required
string
Short description. This text might be used as code label in data sets.

description
required
string
Long description to explain meaning of that missing.

code
required
integer
Code used in data sets to represent this missing.

Examples values:
-98
-97
Additional properties are allowed.
object
uid: state-map@iqb-standard@1.0
Data structure to specify recoding based on response state.

state
required
string
Status of a response to be recoded.

Allowed values:
"UNSET"
"NOT_REACHED"
"DISPLAYED"
"INVALID"
"DERIVE_ERROR"
"NO_CODING"
"CODING_INCOMPLETE"
"CODING_ERROR"
recodeToMissing
string
must match: ^[A-Za-z_]+$
Identifier for missing. A missing list is required to lookup the code value.

Examples values:
"mbi"
"mbd"
"mir"
recodeToFalse
boolean
If true, the value is recoded to the first score 0 code found in the code list of coding scheme.

Additional properties are allowed.

Object specifications for storing and processing response in assessments (see schema id for version)

Operations

SEND iqb_data_structures

Examples

Schemas