The catalogue contains study descriptions in various languages. The system searches with your search terms from study descriptions available in the language you have selected. The catalogue does not have ‘All languages’ option as due to linguistic differences this would give incomplete results. See the User Guide for more detailed information.
Topic terms serve to identify the general topics, subjects or themes of a study. Many but not all metadata providers use CESSDA Topic Classification for their topic terms.
Topic
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Keywords which describe the content of the data. Many but not all metadata providers use ELSST Thesaurus for their keywords. Searchable list contains a maximum of 2000 most common keywords.
Keywords
×ΣΧΟΛΕΙΑ ΔΕΥΤΕΡΟΒΑΘΜΙΑΣ ΕΚΠΑΙΔΕΥΣΗΣ/ΓΥΜΝΑΣΙΑ
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The year(s) in which the data for the study were collected.
Collection years
19002025
The country which the data cover. Note: the filter only includes those studies where the metadata provide an ISO 3166-1 country code. Use an additional free-text search with country name for more results.
Country
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Name of the institution providing the information on the study.
Publisher
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