Table 6 Phase B - Example of de-duplication on basis of differing timescale and/or attribution to eyesight
From: Pre-validation methods for developing a patient reported outcome instrument
Item No. | Item | Response | Instrument |
|---|---|---|---|
153 | During the past week I felt lonely. | 0 = rarely or none of the time (less than 1 day); 1 = some or a little of the time (1-2 days); 2 = occasionally or a moderate amount of the time (3-4 days); 3 = most or all of the time (5-7 days) | CES-D |
154 | Do you feel alone? | 0 = no, 2 = sometimes, 4 = yes | UENISHI (2003) |
68 | In the past month have you felt lonely or isolated because of your eyesight? | not at all, very rarely, a little of the time, a fair amount of the time, a lot of the time, all of the time. | IVI |