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Variable

Meaning

lfdn

Unique participation ID

external_lfdn

Unique participation ID of an external survey (External Survey Start)

tester

Participant = tester (yes/no)

status

Dispositioncode (status of the participation e.g., invited)

lastpage

Page ID of the last page shown to the participant

quality

quality of the results of a survey

duration

Duration (time in seconds to finish the survey. If a respondent resumes the questionnaire after a break (disposition codes 23, 32), the duration is = “-1” because a meaningful calculation is not possible.)

p_000n

URL parameter

c_000n

User-defined variables

v_000n

Project variables. The project variables are sequentially numbered for each project, beginning with v_1.

md_000n

Master data variables (only in EFS Panel installations)

ex_host

Host name based on the IP of the proxy (if available) via which the participant accesses the survey

ip_addr

IP of the proxy (if available) via which the participant accesses the survey

browser

Browser info (name, version etc.) of the participant

referer

If available, the address of the page on which the participant clicked the link to the currently accessed page. This value is set by the participant's browser

device_type

Type of the user’s devices (0 - desktop / 1 - mobile)

If the option “Check whether the respondents have JavaScript activated, whether the Adobe Flash Player plugin is available and which device they are using?” of the project properties is not activated, 0 is the default value.

quota

Quota ID of the participant (selected by “To which quota should the participant be allocated”

quota_assignment

All quota ID’s of the participant

page_history

List of page ID’s in the order of the pages called up by the participant

hflip

Variable for the horizontal flip (horizontal mirroring of the answer options):

  • 0 = not flipped

  • 1 = flipped

When a participant starts a survey for the first time, hflip is always written – regardless of whether flips are activated for the survey or not. However, the participant will only see those questions flipped for which the flipping function has been explicitly activated. Consequently, all questions, for which this function was not activated, will be displayed as set in the corresponding question regardless of the random hflip value. Information on whether the flipping function has been activated for a question cannot be found in the export of the result data. To get this information, you have to manually check in the respective question, if the flipping function has been activated.

vflip

Variable for the vertical flip (vertical mirroring of the answer options):

  • 0 = not flipped

  • 1 = flipped

When a participant starts a survey for the first time, vflip is always written – regardless of whether flips are activated for the survey or not. However, the participant will only see those questions flipped for which the flipping function has been explicitly activated. Consequently, all questions, for which this function was not activated, will be displayed as set in the corresponding question regardless of the random vflip value. Information on whether the flipping function has been activated for a question cannot be found in the export of the result data. To get this information, you have to manually check in the respective question, if the flipping function has been activated.

output_mode

Which layout is used? HTML layout or mobile layout?

javascript

Version of the browser’s javascript (if configured)

flash

Version of the Flash Payer plugin (if configured)

session_id

Session ID of the participation

language

Participant’s language ID

cleaned

Participation was modified by data cleaning

ats

Time of survey start (absolute time stamp)

datetime

Time of the survey start

date_of_last_access

Time of the last access of the participant to the survey

date_of_first_mail

Time of the first mail sent to participant

RTS (+ page ID)

Relative time stamp for each page + page ID.
RTS (+ page ID) indicates the time in seconds that has elapsed since the survey start. Using this variable, you can determine the time a participant has spent on a page. For the calculation, you must subtract the value of RTS (+Page ID) of the previous page from the value of RTS (+Page ID) of the desired page. A calculation example can be found below.

image-20240312-101533.png

Please note, that the order of the variables "RTS (+page ID)" in the export does not necessarily correspond to the order in which the respective participant has displayed the pages.

sid

Only in panel and master data surveys : ID of the sample that the panelists belong in.

For the SPSS export, the codes are labeled with the sample titles.

dt_send_pag_000n

Time variables of standard pages and mixed-external pages. These indicate the time in seconds elapsed since the ats until sub- mission of the respective page.

If the PGID (page ID = installation-specific ID of a questionnaire page or a dynamic element) is bigger than 99.999, the name of the variable is changed to ts_xxx, to prevent problems caused by the length of the variable name when exporting for SPSS.

rnd_pg_PGID

Random selection.

For each random selection block in the questionnaire, a variable rndPGID is created. PGID is the ID of the random selection element.

In this variable, the PGIDs of the selected pages are stored, separated by commas.

rnd_pg_PGID_x

Random order.

For each random order block in the questionnaire, variables rnd_pg_PGID_NR are created. PGID is the ID of the random order element, NR is the number of randomized subpages.

Each of these variables contains the PGID of that subpage which has been placed on the respective position in the current cycle.

Example: The PGID of the random order element is 123, the subpages have PGID 124, 125 and 126. In the questionnaire, they are displayed to a participant in the following order: 126, 124, 125. Then, you will find the following data in the export file: r123_1 = 126, r123_2 = 124, r123_3 = 125

tic

tic variable used in external survey start. The tic variable is always 32 characters long. This cannot be configured.

s_000n

Scoring variables

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