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Table 1 Sum score correlations, mean sum scores of the random week set of HAMD-17, MADRS and BDI and internal consistency (Cronbach´s alpha, coefficient Omega)

From: A factor analytic comparison of three commonly used depression scales (HAMD, MADRS, BDI) in a large sample of depressed inpatients

 

MADRS

HAMD-17

Min

Max

Mean

SD

Cronbach´s alpha

Omega

MADRS

  

1.00

51.00

22.70

10.47

0.92

0.92

HAMD-17

0.88

 

1.00

36.00

16.22

7.72

0.85

0.86

BDI

0.59

0.58

0.00

58.00

19.97

11.42

0.91

0.92