urn:ddi:int.example:018c5248-c461-4655-9a3a-8a4e61ca80f4:2 int.example 018c5248-c461-4655-9a3a-8a4e61ca80f4 2 extension:ShouldCalculateFrequenciesForValidValues True extension:ShouldCalculateFrequenciesForInvalidValues True fdz@dezim-institut.de edu0033x01 edu0033x01 edu0033x01 Vorheriger Schulabschluss (Deutschland): Abschlussart Previous school-leaving degree (Germany): type of degree Previous school-leaving degree (Germany): type of degree int.example 19b88fbf-7ebd-408b-9de7-6075ab863fa3 1 QuestionItem int.example 9d7ffe05-93a2-4e36-b470-755e8ab6126c 1 CodeList