Table 3 Test-retest reliability of child- and parent screen time use (N = 31)
Question (measure) assessed (all units of measurement are minutes) | Statistical assessment of test-retest reliability |
|---|---|
Question 9 | |
Time spent using screen media on a typical weekday, (child) | ICC = 0.72 (95%CI: 0.52–0.86) SEM = 38.84 min/day (95% CI: 30.09–50.13) Mean difference = 2.74 Limits of agreement = (− 105.02, 110.51) |
Time spent using screen on a typical weekend-day, (child) | ICC = 0.67 (95%CI: 0.47–0.84) SEM = 59.88 min/day (95% CI: 46.75–76.70) Mean difference = 18.23 Limits of agreement = (− 146.93, 183.39) |
Mean min per day, child (min week-day × 5) + (min per weekend day × 2)/7(child) | ICC = 0.75 (95% CI 0.58–0.88) SEM = 38.52 min/day (95% CI 29.94–49.56) Mean difference = 7.17 min/day Limits of agreement = (− 99.67, 114.00) |
Question 13 | |
Time spent using screen media on a typical weekday, (child) | ICC = 0.81 (95%CI: 0 .67–0.90) SEM = 26.66 min/day (95% CI: 20.81–34.14) Mean difference = 2.42 Limits of agreement = (− 72.76, 77.60) |
Time spent using screen media on a typical weekend-day, (child) | ICC = 0.90 (95%CI: 0.81–0.95) SEM = 47.29 min/day (95% CI: 36.91- = 60.59) Mean difference = 18.87 Limits of agreement = (− 109.27, 147.01) |
Mean min per day, child (min week-day × 5) + (min per weekend day × 2)/7(child) | ICC 0.88 (95%CI: 0.79–0.94) SEM = 27.05 min/day (95% CI: 21.11–34.65) Mean difference = 7.12 Limits of agreement = (− 67.93, 82.16) |
question 19 | |
Time spent using screen media on a typical weekday, (parent) | ICC = 0.68 (95%CI: 0.48–0.84) SEM = 60.47 min/day (95% CI: 47.33–77.26) Mean difference = 10.16 Limits of agreement = (− 160.49, 180.81) |
Time spent using screen media on a typical weekend-day, (parent) | ICC = 0.80 (95%CI: 0.66–0.90) SEM = 63.01 min/day (95% CI: 49.22–80.66) Mean difference = 2.42 Limits of agreement = (− 175.78, 180.62) |
Mean min per day, parent (min week-day × 5) + (min per weekend day × 2)/7(parent) | ICC = 0.75 (95%CI: 0.59–0.88) SEM = 54.54 min/day (95% CI: 42.65–69.76) Mean difference = 7.95 Limits of agreement = (− 145.85, 161.75) |
question 18 | |
Work-related time spent on screen media on weekdays in the home, (parent) | ICC = 0.73 (95%CI: 0.55–0.87.) SEM = 63.86 min/day (95% CI: 49.70–82.04) Mean difference = − 3.87 Limits of agreement = (− 182.86, 175.12) |
Work-related time spent on screen media on weekend-days in the home, (parent) | ICC = 0.69 (95%CI: 0.50–0.84) SEM = 26.57 min/day (95% CI: 20.76–34.02) Mean difference = − 5.81 Limits of agreement = (− 80.06, 68.44) |