BACKGROUND: Internet-based screening for depression is becoming increasingly important. The aim of this study is to validate the Edinburgh Depression Scale (EDS) for internet administration. METHODS: In 407 participants (64% women; 36% men) with subthreshold depression (mean age=55 years; S.D.=4.9) positive predictive values for a syndromal CIDI diagnosis of clinical depression were calculated and compared to those from paper and pencil validation studies. At one-year follow-up, internal consistency and convergent validity of the internet-based EDS were determined in 177 participants by Cronbach's alpha and correlations with the internet-administered BDI and SCL-90 subscales depression and anxiety. RESULTS: Positive predictive values ranged between 29% and 33% at cut-off scores of 12 to 14. Cronbach's alpha for the internet-administered EDS was 0.87. The EDS correlated significantly with the internet-administered BDI (r=.75; p<.001) and two internet-administered subscales of the SCL-90: depression (r=.77; p<.001) and anxiety (r=.72; p<.001). A major limitation is that the study was conducted without a control group of healthy subjects. CONCLUSION: The psychometric properties of the internet-administered EDS are comparable to those of the paper and pencil EDS.
RCT Entities:
BACKGROUND: Internet-based screening for depression is becoming increasingly important. The aim of this study is to validate the Edinburgh Depression Scale (EDS) for internet administration. METHODS: In 407 participants (64% women; 36% men) with subthreshold depression (mean age=55 years; S.D.=4.9) positive predictive values for a syndromal CIDI diagnosis of clinical depression were calculated and compared to those from paper and pencil validation studies. At one-year follow-up, internal consistency and convergent validity of the internet-based EDS were determined in 177 participants by Cronbach's alpha and correlations with the internet-administered BDI and SCL-90 subscales depression and anxiety. RESULTS: Positive predictive values ranged between 29% and 33% at cut-off scores of 12 to 14. Cronbach's alpha for the internet-administered EDS was 0.87. The EDS correlated significantly with the internet-administered BDI (r=.75; p<.001) and two internet-administered subscales of the SCL-90: depression (r=.77; p<.001) and anxiety (r=.72; p<.001). A major limitation is that the study was conducted without a control group of healthy subjects. CONCLUSION: The psychometric properties of the internet-administered EDS are comparable to those of the paper and pencil EDS.
Authors: D Keith McInnes; Julie A Brown; Ron D Hays; Patricia Gallagher; James D Ralston; Mildred Hugh; Michael Kanter; Carl A Serrato; Carol Cosenza; John Halamka; Lin Ding; Paul D Cleary Journal: Med Care Date: 2012-11 Impact factor: 2.983
Authors: Martha van den Berg; Noortje A Verdijk; Geraline L Leusink; Colette J M Wijnands-van Gent; Arnold C Romeijnders; Victor J M Pop; Joop P W van den Bergh Journal: BMC Geriatr Date: 2011-11-07 Impact factor: 3.921
Authors: Bethany A Jones; Kathleen M Griffiths; Helen Christensen; David Ellwood; Kylie Bennett; Anthony Bennett Journal: BMC Psychiatry Date: 2013-10-17 Impact factor: 3.630