Table 3. Criterion validity of values measured by each questionnaire method compared with values measured by the activPAL.

	Time 1a				Time 2b
	Spearman’s ρ		Kappa coefficientc		Spearman’s ρ		Kappa coefficientc
	T-method	P-method	T-method	P-method	T-method	P-method	T-method	P-method
Workday
During working time
Sitting	0.52*	0.59*	0.39*	0.44*	0.56*	0.65*	0.41*	0.44*
Walking/Standing	0.56*	0.56*	0.38*	0.35*	0.58*	0.60*	0.40*	0.45*
During non-working timed
Sitting	0.55*	0.57*	0.43*	0.36*	0.51*	0.60*	0.36*	0.41*
Walking/Standing	0.58*	0.61*	0.35*	0.40*	0.57*	0.61*	0.39*	0.45*
Non-workdaye
Sitting	0.25	0.42*	0.13	0.23*	0.37*	0.53*	0.28*	0.32*
Walking/Standing	0.30*	0.45*	0.16*	0.21*	0.45*	0.60*	0.31*	0.34*

T-method, time method (questionnaire); P-method, percentage method (questionnaire).

^aTime 1: Subjects completed the questionnaire before the activPAL measurements.

^bTime 2: Subjects completed the questionnaire after the activPAL measurements.

^cParticipants were classified into four groups using quartile points.

^dExcluding working, commuting, and sleeping time.

^eExcluding sleeping time.

*P < 0.05.