The platform paneldata.org documents the data sets and meta data of various German panel studies. At ➔ paneldata.org/twinlife you can find a brief study description of TwinLife, information about the survey methods, topics and the data access. Furthermore, detailed information on variables and instruments are available: Use the keyword search or the topic list in order to find your variable of interest. By clicking on the variable, you receive information on

• labels
• categories
• frequencies
• related instrument(s) and variables

At ➔ paneldata.org/twinlife you can also find all questionnaires and the question wording for each variable including the input filter of the question in English and in German.