In these years the ISSP conducted eight different Social Science Surveys in up to 17 countries.
Additional information is provided about data format and documentation types.
The individual ISSP country surveys have been processed at the Zentralarchiv to international comparative data-sets. NSDstat is a product of the Norwegian Social Science Data Archives, Bergen, Norway. It is a tool 'to enable the user to communicate with the data-sets' using 'methods and graphical displays which intuitively are comprhensive'. Additionally the codebook-files and also further information about ISSP are searchable on this media. Questionnaires in all languages Together with the retrieval software it is possible to browse the original questionnaires of all participating ISSP countries for all ISSP modules between 1985-1992.