The test-retest reliability of the GDS has also been shown to be high: 0.85 at one week
(N = 20) (1, p44), 0.86 at one hour (16, Table 1), and 0.98 at ten to 12 days (13, p206). Brink et al. reported an inter-rater reliability of 0.85 in a sample of 54 residents of long-term care facilities (16, Table 1).