Table 4.

Test-retest reliability of the “New Version of Mode and Frequency of Commuting To and From School” questionnaire by age range.

	6–7 y n = 104	8–9 y n = 138	10–11 y n = 255	12–13 y n = 234	14–15 y n = 140	16–17 y n = 112
	Kappa	Kappa	Kappa	Kappa	Kappa	Kappa
Usual mode to school	0.85	0.87	0.93	0.98	0.87	0.84
Usual mode from school	0.84	0.81	0.91	0.94	0.91	0.93
Weekly mode to school
Walk	0.50	0.58	0.61	0.67	0.57	0.63
Bike	0.31	0.18	0.29	0.25	0.58	0.71
Car	0.54	0.39	0.65	0.65	0.53	0.56
Motorbike	0.33	0.20	0.45	0.42	0.07	0.79
School bus	0.64	0.85	0.93	0.87	0.82	1
Public bus	0.17	0.26	0.38	0.79	0.67	0.67
Weekly mode from school
Walk	0.44	0.44	0.60	0.71	0.63	0.60
Bike	0.39	0.20	0.07	0.15	0.52	0.71
Car	0.43	0.45	0.62	0.69	0.67	0.59
Motorbike	0.39	0.52	0.52	0.19	0.32	0.56
School bus	0.80	0.69	0.82	0.72	0.84	0.74
Public bus	0.22	0.40	0.59	0.76	0.79	0.70
Distance to school ‡	0.55	0.75	0.81	0.80	0.89	0.93
Time to school ‡	0.30	0.48	0.68	0.76	0.79	0.86
Total	0.38	0.40	0.54	0.61	0.55	0.59

Notes: y, years old. n, sample size. ^‡, weighted kappa values. All p < 0.001. Extended version for Table 4 is available in supplemental Table S2.