System Data
In addition to personal data such as last name, first name, and address, so called system data are stored automatically for all panelists. They are used to collect meta information on the panelists and make it available to the administrator, for example:
How did the panelist join the panel? Did they register themselves, were they imported by an administrator, or were they added during a “Canvass friends” campaign?
When did they participate in the master data survey, and how often were they invited to participate in the survey?
How many panel surveys has the panelist completed?
System data are used in several places in the EFS Panel admin area. For example, you can use the panel status (“pstatus”), the way of entry (“reg_code”) or the pseudonym as critieria for panelist searches. Furthermore, the variables are included in the master data export and can be used for evaluation purposes.
Overview of System Data
The following table describes the meaning of the system data. The second column gives you the names of the variables in the SPSS data record.
Variable name | Variable name in | Meaning | Data type | Size |
|---|---|---|---|---|