Table 1.
Test re-test reliability of user-testing and opinion questionnaire.
| Type of questionnaire | Test 1 (Day 1 scores) (Mean ± SD) | Test 2 (Day 7 scores) (Mean ± SD) | Mean difference ± SD, (range) | ICC value | 95% CI |
|---|---|---|---|---|---|
| [Significance] | |||||
| User testing Kannada version (n = 12) | 45.83 ± 13.72 | 44.25 ± 10.83 | 1.57 ± 5.98, (−11, 10), [NS, p 0.38] | 0.93 | 0.79–0.98 |
| User testing English version (n = 12) | 48.79 ± 10.76 | 49.62 ± 12.75 | −0.83 ± 2.88 (−10, 0), [NS, p 0.33] | 0.98 | 0.95–0.99 |
| User opinion Kannada version (n = 12) | 16.08 ± 2.23 | 16.41 ± 2.19 | −0.33 ± 1.15 (−2, 2), [NS, p 0.33] | 0.92 | 0.75–0.97 |
| User opinion English version (n = 12) | 14.66 ± 1.92 | 15.25 ± 1.86 | −0.58 ± 0.79, (−2, 0), [significant, p 0.02] | 0.95 | 0.68–0.98 |
SD – standard deviation; NS – not significant; ICC – intraclass correlation coefficient; CI – confidence interval.