Cross-cultural validation of the Turkish Four-Dimensional Symptom Questionnaire (4DSQ) using differential item and test functioning (DIF and DTF) analysis

Author
Unalan, Pemra C.
van Marwijk, Harm W. J.
Sipahioglu, Nurver Turfaner
Ozkul, Seda Arslan
Terluin, Berend
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Abstract
Background: The Four-Dimensional Symptom Questionnaire (4DSQ) is originally a Dutch 50 item questionnaire developed in primary care to assess distress, depression, anxiety and somatization. We aimed to develop and validate a Turkish translation of the 4DSQ.
URI
http://hdl.handle.net/20.500.12627/61004
https://doi.org/10.1186/s12875-016-0449-4
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