Research article
The Four-Dimensional Symptom Questionnaire (4DSQ): a validation study of a multidimensional self-report questionnaire to assess distress, depression, anxiety and somatization
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* Corresponding author: Berend Terluin b.terluin@vumc.nl
1 Department of General Practice, EMGO-Institute, VU University Medical Centre, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands
2 Department of Clinical Epidemiology and Biostatistics, VU University Medical Centre, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands
3 EMGO-Institute, VU University Medical Centre, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands
4 Department of Psychiatry, EMGO-Institute, VU University Medical Centre, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands
5 Academic Medical Centre, Coronel Institute, University of Amsterdam, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands
BMC Psychiatry 2006, 6:34 doi:10.1186/1471-244X-6-34
Published: 22 August 2006Additional files
Additional file 1:
Reliability, precision and smallest detectable change. Paper assessing the reliability, precision and smallest detectable change of the 4DSQ scales, using the data of studies C through J.
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Additional file 2:
Responsiveness. Paper assessing the responsiveness of the 4DSQ scales, using the data of study I.
Format: PDF Size: 44KB Download file
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Additional file 3:
Respondent burden. Paper assessing the time needed to fill in the 4DSQ, using the data of study J.
Format: PDF Size: 7KB Download file
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