Hits 11-20 within 3 documents
empirische Sozialforschung (3) |
Erhebungsmethode (3) |
Federal Republic of Germany (2) |
Fragebogen (1) |
international comparison (1) |
internationaler Vergleich (1) |
monitoring (1) |
observation (2) |
quality assurance (1) |
quality control (1) |