FAQ

SOEP-IS consists of various data sets with different structures and a wide range of documentation. However, there are some questions that require specific knowledge of the documentation or the data to answer. For this reason, a selection of frequently asked questions is listed below. Some of the answers will certainly be familiar to experienced users, but new data users in particular may find useful information here.

Note: This FAQ refers specifically to SOEP-IS. There is also a general FAQ on SOEP data on the SOEP-Website.

• What is the difference between the Companion of the SOEP-Core and the SOEP-IS?
• Why are there cases from SOEP-Core in some SOEP-IS datasets?
• Can I merge variables from innovative modules with SOEP Core data?
• The inno.dta dataset cannot be opened because it contains too many variables / cases. Is there a smaller version of the dataset?
• According to the questionnaire, respondents can answer open ended questions. Why are these variables not in the datasets?
• What do the suffixes “_v1”, “_v2”, or “_h” in variable names mean?
• Why is the pid not a unique identifier in the biol dataset?

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