Test results 1. Data collected from 10 test subjects during a 2-week survey using the RAI questionnaire (mood, pain, quality of life), Con-Dis device (perceived well-being) and RAVA index (see the text). Each test subject is shown on the x-axis (subjects numbered 1-10) and their reported well-being parameters (as mean values), along with their probability errors, are shown on the y-axis. Values on the y-axis are between 1 (unhappy) and 3 (happy).
Reijula et al. BMC Geriatrics 2009 9:55 doi:10.1186/1471-2318-9-55