Table 3.
Results of the test-retest reliability study for adolescents, adults and older adults: overview per part of the age-specific questionnaires
| Sections of questionnaire (age-specific) | Number of items | ICC (range) | Kappa (range) | Excellent reliability n (%) | Good reliability n (%) | Moderate reliability n (%) | Poor reliability n (%) |
|---|---|---|---|---|---|---|---|
| Adolescents | |||||||
| Context-specific sedentary behaviours | 24 | −0.06; 0.92 | / | 2 (8.33) | 3 (12.50) | 10 (41.67) | 9 (37.50) |
| Potential correlates of TV viewing | 24 | 0.49; 0.96 | 0.44 | 10 (41.67) | 10 (41.67) | 4 (16.66) | / |
| Potential correlates of gaming | 19 | 0.24; 0.92 | 0.63 | 4 (21.05) | 8 (42.11) | 6 (31.58) | 1 (5.26) |
| Potential correlates of computer use | 18 | 0.16; 0.95 | 0.49 | 7 (38.89) | 5 (27.78) | 5 (27.78) | 1 (5.55) |
| Potential correlates of motorized transport | 21 | 0.18; 0.99 | 0.30; 0.84 | 8 (38.10) | 8 (38.10) | 3 (14.28) | 2 (9.52) |
| Potential correlates of school | 3 | 0.57; 0.92 | / | 1 (33.33) | 1 (33.33) | 1 (33.33) | / |
| Sedentary-related equipment | 16 | 0.38; 0.96 | / | 13 (81.25) | 3 (18.75) | / | / |
| Simultaneous behaviour | 6 | 0.71; 0.88 | / | 4 (66.67) | 2 (33.33) | / | / |
| Overall | 131 | −0.06; 0.99 | 0.30; 0.84 | 49 (37.41) | 40 (30.53) | 29 (22.14) | 13 (9.92) |
| Adults | |||||||
| Context-specific sedentary behaviours | 23 | 0.22; 0.95 | / | 6 (26.09) | 10 (43.48) | 6 (26.09) | 1 (4.34) |
| Potential correlates of TV viewing | 20 | 0.31; 0.93 | / | 7 (35.00) | 8 (40.00) | 4 (20.00) | 1 (5.00) |
| Potential correlates of computer use | 17 | 0.18; 0.92 | / | 2 (11.77) | 5 (29.41) | 5 (29.41) | 5 (29.41) |
| Potential correlates of motorized transport | 24 | 0.42; 1.00 | 0.29; 1.00 | 5 (20.83) | 12 (50.00) | 7 (29.17) | / |
| Potential correlates of occupation | 33 | 0.06; 0.94 | −0.07; 1.00 | 6 (18.18) | 14 (42.43) | 9 (27.27) | 4 (12.12) |
| Potential correlates of household tasks and making phone calls | 19 | 0.26; 0.85 | 0.31; 0.70 | 4 (21.05) | 9 (47.37) | 3 (15.79) | 3 (15.79) |
| Sedentary-related equipment | 22 | 0.29; 1.00 | / | 13 (59.09) | 6 (27.27) | 3 (13.64) | / |
| Simultaneous behaviour | 6 | 0.61; 0.87 | / | 3 (50.00) | 3 (50.00) | / | / |
| Overall | 164 | 0.06; 1.00 | −0.07; 1.00 | 46 (28.05) | 67 (40.85) | 37 (22.56) | 14 (8.54) |
| Older adults | |||||||
| Context-specific sedentary behaviours | 26 | −0.13; 0.95 | / | 9 (34.62) | 7 (26.92) | 5 (19.23) | 5 (19.23) |
| Potential correlates of TV viewing | 19 | −0.19; 1.00 | / | 5 (26.31) | 6 (31.58) | 6 (31.58) | 2 (10.53) |
| Potential correlates of computer use | 15 | −0.15; 0.93 | / | 4 (26.67) | 3 (20.00) | 5 (33.33) | 3 (20.00) |
| Potential correlates of motorized transport | 17 | −0.20; 0.91 | 0.51 | 1 (5.88) | 5 (29.41) | 6 (35.30) | 5 (29.41) |
| Potential correlates of household tasks and making phone calls | 18 | −0.19; 0.88 | 0.38; 1.00 | 5 (27.78) | 10 (55.55) | 3 (16.67) | / |
| Sedentary-related equipment | 17 | −0.07; 1.00 | / | 12 (70.59) | 5 (29.41) | / | / |
| Simultaneous behaviour | 7 | 0.78; 0.99 | / | 7 (100.00) | / | / | / |
| Overall | 119 | −0.20; 1.00 | 0.38; 1.00 | 43 (36.13) | 36 (30.25) | 25 (21.01) | 15 (12.61) |