Using events to save interview paradata
Paradata is information about the data collection process. For interviews, the following paradata is available as properties of IInterview.Info:
Browser
Data type: nvarchar (255)
The browser used to post the web page. The Web Service captures the browser version from the browser. Only available when using the Web player.
ElapsedTime
Data type: datetime
The total time taken for the interview.
InterviewerID
Data type: nvarchar (64)
The interviewer ID.
InterviewerTimeZone
Data type: int
The interviewer’s time zone.
IsDebug
Data type: bit
True if the interview was run in debug mode, otherwise False.
IsTest
Data type: bit
True if this is a test interview, otherwise False.
LastAsked
Data type: nvarchar (255)
The name of the last question asked.
LastAskedTime
Data type: datetime
The time at which the last question was asked.
Origin
Data type: nvarchar (255)
The name of the software product that created the data. Either HTMLPlayer, CATI_HTMLPlayer, CATI_TTYPlayer, or Other. For more information, see
System variables.
OriginName
Data type: nvarchar (255)
The source software product name. Used when Respondent.Origin is {Other}.For more information, see
System variables.
PagesAnswered
Data type: int
The number of pages (questions) answered. Normally there is one question per page.
PagesAsked
Data type: int
The number of pages (questions) displayed during the interview. Normally there is one question per page.
Project
Data type: nvarchar (255)
The project name.
RandomSeed
Data type: int
The value used for randomizing responses in a list.
Renderer
Data type: nvarchar (255)
The name of the renderer used for the interview.
RespondentID
Data type: nvarchar (64)
The respondent ID.
RespondentTimeZone
Data type: int
The respondent’s time zone.
ReversalSeed
Data type: int
The value used for reversing the order of responses in a list.
RotationSeed
Data type: int
The value used for rotating responses in a list.
Serial
Data type: int
The interview serial number.
ServerTime
Data type: datetime
The amount of processing time used for the interview.
ServerTimeZone
Data type: int
The time zone of the interviewing server.
StartTime
Data type: datetime
The date and time at which the interview started.
Timeouts
Data type: int
How many times the interview timed out.
The following variables are also available at the question level, as properties of IQuestionInfo to provide paradata for individual questions:
AskCount
Data type: int
How many times the question has been asked. This includes re-asking after using Previous as well as after validation errors.
CategoriesAsked
Data type: nvarchar
The categories that were displayed in the response list, taking into account any filters applied. This matches the value of the question's Question.Categories.Filter property. For more information, see Filtering categorical response lists.
ElapsedTime
Data type: datetime
The total amount of time between displaying the question and the respondent clicking a navigation button.
InterviewID
Data type: nvarchar (64)
The interview session ID.
NavigationSelected
Data type: nvarchar (64)
The navigation button used to leave the question.
Project
Data type: nvarchar (255)
The project name.
QuestionName
Data type: nvarchar (64)
The question name.
See also