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Table 4 Internal consistency of GDS

From: Multi-ethnic validation of 15-item Geriatric Depression Scale in Chile

Item-total corrected correlation GDS itemsNon-indigenousAymaraMapuche
1 R0.5210.2800.589
20.5210.2580.425
30.6770.4980.494
40.6140.4160.528
5 R0.6690.5950.585
60.4440.3510.410
7 R0.7400.5540.636
80.7340.5890.556
90.4980.3270.292
100.2060.2730.374
11 R0.6700.4030.537
120.7490.5750.509
13 R0.5310.5690.424
140.6420.4820.518
150.5650.1860.509
KR-20 coefficient0.9010.7960.848
Item homogeneity0.380.240.29
  1. R recoded (0➔1; 1➔0)