- The documentation of the original ALLBUS survey instruments includes the German ISSP-modules administered together with ALLBUS since 1986 as well as additional survey materials such as showcards etc.
- Since 2000 the ALLBUS-series uses CAPI as method of data collection. The documentation of CAPI-instruments comprises the complete question programm as well as all relevant routing information. Check routines and purely technical variables are not routinely documented.
- English translations of ALLBUS questionnaires have been regularly made available since ALLBUS 1996. Apart from a translation of the ALLBUS-questions, the documentation includes the English language masterquestionnaires of the ISSP-modules administered with ALLBUS. Showcards and other interview materials are only available as part of the original language documentation.