Table 2.
Question | Questions by same person, n | Questions with same answers, n (%) | Survey method, median (interquantile range) | Kappa/ICC (95% CI) | |
|
|
|
Face-to-face | Text messaging |
|
2 | 43 | 25 (58) | 2.00 (1.00, 2.00) | 2.00 (1.00, 2.00) | .68 (0.43, 0.92)a |
3 | 35 | 23 (66) | 2.00 (1.00, 3.00) | 3.00 (1.00, 3.00) | .50 (0.21, 0.79)a |
4 | 34 | 19 (56) | 1.00 (1.00, 2.00) | 1.50 (1.00, 2.00) | .23 (–0.12, 0.58)a |
5 | 29 | 18 (62) | 6.00 (5.00, 6.00) | 6.00 (5.00, 6.00) | .53 (0.29, 0.76)b |
6 | 29 | 19 (66) | 7.00 (6.00, 8.00) | 6.00 (6.00, 7.00) | .72 (0.51, 0.86)b |
7 | 31 | 22 (71) | 18.00 (12.00, 24.00) | 18.00 (12.00, 24.00) | .69 (0.50, 0.83)b |
8 | 33 | 28 (85) | — | — | .76 (0.56, 0.96)c |
Total | 255 | 159 (62) | — | — | — |
aFleiss-Cohen kappa
bICC
cSimple kappa