“…Furthermore, the 3-day look back period of the DRS used in version 9.1 may be particularly vulnerable to short-term fluctuations in mood. Despite this, the sensitivity of the DRS in the present study, although poor, was better than that reported in previous studies 18 –20,22,23 other than the original development study (see Table 2). One possibility is that as the sample was primarily drawn from acute inpatient psychogeriatric wards, the severity of depression within the sample may have tended to be more severe than in general long-term aged residential care samples.…”