Every survey collected in Survey Solutions is supplemented with a paradata file. No actions are needed from the questionnaire designers or headquarters team to collect it, it is produced automatically by the Survey Solutions software.
The paradata files describe the process of data collection. They explain how the data was entered, detailing all edits, who and when undertaken them. These files may be large and most conveniently processed using specialized statistical packages, rather than general purpose tools.
The paradata is supplied in a zip archive with a tab-delimited data file inside. Each line of these files correspond to one recorded event. These files contain the following columns:
|interview__id||32-hexadecimal ID (GUID) of the interview affected by the event.||75efdc0456fb4b35be4690bd19eab870|
|order||Numeric sequential ID of the event (starts from 1 for every interview).||1|
|event||Type of the event that has been recorded. See below for possible values.||AnswerSet|
|responsible||Login name of the person responsible for the event||Enumerator25|
|role||Role of the person mentioned in the 'responsible' column, one of the following: Interviewer, Supervisor, Headquarter||Interviewer|
|timestamp||Date and time when the event occurred combined in a single timestamp.||2018-12-28T23:00:59|
|offset||Time offset relative to UTC.||-05:00:00|
|parameters||One or more parameters of the event, the interpretation of which depends on the type of event.||GPSLOC||16.73526463,75.9320787827||2.0|
The following table outlines the types of the events recorded in the paradata and the interpretation of the parameters column corresponding to events of this type.
|AnswerRemoved||Question's answer was removed (cleared).||QuestionGUID||OptionalRosterAddress|
|AnswerSet||Question was answered in the interview.||varname||value||OptionalRosterAddress|
Values are mostly same as they are present in the tab-delimited export files, with a few exceptions where the value in the tab-delimited file is split among multiple columns.
Values of multiselect questions are recorded as codes of selected items separated by commas: 323.0, 315.0, 147.0
Values of text list questions are recorded as specified items separated by the |-character: Sergiy|Maryna|Natalia
Values of GPS questions are represented in the form latitude,longitude[accuracy]altitude, such as 16.73526463,75.9320787827
|ApproveByHeadquarter||Indicates when the interview was approved by an HQ user.||Comment entered by the HQ user during approval.|
|ApproveBySupervisor||Indicates when the supervisor approved the interview.||Comment entered by the supervisor during approval.|
|ClosedBySupervisor||Indicates when the supervisor closed the interview opened for a review.||NO PARAMETERS|
|CommentSet||Occurs when a comment was written to a question in the interview.||varname||comment - if the question is not in any roster|
varname||comment||OptionalRosterAddress - if the question is part of a roster.
|Completed||Indicates when the interview was marked as completed by the interviewer.||Comment entered by the interviewer at completion.|
|InterviewerAssigned||Event that occurs when the interviewer becomes responsible for the interview (for example, when the interview is created from an assignment).||Name of the interviewer that became responsible for this interview.|
|KeyAssigned||Newly created interview is assigned an interview key. Also occurs when a key of the interview is modified tue to a collision with an existing interview's key. Latest event will reflect the current interview key. Event may once OR twice per interview only.||Interview key in the form NN-NN-NN-NN|
|OpenedBySupervisor||Indicates when the supervisor opened the interview for a review.||NO PARAMETERS|
|Paused||Indicates a prolonged pause during the interviewing process, such as when the tablet goes into the sleep mode to conserve power.||NO PARAMETERS|
|QuestionDeclaredInvalid||Event corresponding to the situation when the value of the question deemed to be invalid (not passing the specified validation).||varname||OptionalRosterAddress|
|QuestionDeclaredValid||Event corresponding to the value of the question deemed to be valid (passing the specified validation).||varname||OptionalRosterAddress|
|ReceivedByInterviewer||Indicates reception of the rejected interview by the interviewer on the tablet.||NO PARAMETERS|
|ReceivedBySupervisor||Indicates when the completed interview was received by the supervisor.||NO PARAMETERS|
|RejectedByHeadquarter||Occurs when an interview is rejected by a headquarters user.||Comment written by the HQ user when the interview was rejected.|
|RejectedBySupervisor||Occurs when an interview is rejected by the supervisor.||Comment written by the supervisor when the interview was rejected.|
|Restarted||Occurs when an interview is restarted on a tablet (from a completed status).||NO PARAMETERS|
|Resumed||Indicates resuming work on the interview, such as when the tablet wakes up after going to a sleep mode.||NO PARAMETERS|
|SupervisorAssigned||Newly created interview is assigned as responsibility to the team of the interviewer, which started the interview.||NO PARAMETERS|
|TranslationSwitched||Occurs when the language (translation) of the interview is switched.||Name of the selected language.|
|UnapproveByHeadquarters||Occurs when the interview was unapproved by the HQ (or an admin) user.||Comment (if provided) when the interview was unapproved. Typically the automatic message "[Approved by Headquarters was revoked]".|
|VariableDisabled||Occurs when a variable is disabled (when it is part of a section which gets disabled).||varname||value||OptionalRosterAddress|
|VariableSet||Occurs when a variable is recalculated.||varname||value||OptionalRosterAddress|
OptionalRosterAddress denotes one or more numeric rowcodes for each level of nesting when the event affects an item (question, variable, etc) in a roster. In case of multiple rowcodes they are separated by commas. For example, 2.0,5.0,0.0 may correspond to the job coded 0, of the person with rowcode 5 of the household with rowcode 2. If the item is not part of any roster, it’s OptionalRosterAddress is blank.