Cross-cultural validation of the German version of the Four-Dimensional Symptom Questionnaire (4DSQ) in multimorbid elderly people.
Anna ExnerMaria KleinstäuberWolfgang MaierAngela FuchsJuliana J PetersenIngmar SchäferJochen GensichenSteffi G Riedel-HellerSiegfried WeyererHorst BickelHans-Helmut KönigBirgitt WieseGerhard SchönMartin SchererHendrik van den BusscheBerend TerluinPublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2018)
The German 4DSQ demonstrated measurement equivalence to the original Dutch instrument. Hence, it can be considered a valid questionnaire for the screening for mental health problems in primary care.