Table III.

Planned Comparisons of Physical Activity Calibrated Scale and Sleep Problems Item Bank

Variable	Physical activity			Sleep problems
	All sample	1–2 years	3–5 years	All sample	1–2 years	3–5 years
Physical activity
All sample	r a = 1
1–2 years		r = 1
3–5 years			r = 1
Sleep problems
All sample	r = 0.19***			r = 1
1–2 years		r = 0.23***			r = 1
3–5 years			r = 0.16***			r = 1
Global health
All sample	r = 0.03			r = −0.36***
1–2 years		r = 0.05			r = −0.35***
3–5 years			r = 0.01			r = −0.38***
Physical condition (0 vs. 1+)	ns	ns	ns	t = 9.81***	t = 7.35***	t = 7.09***
Emotional/behavioral condition (0 vs. 1+)	t b = 3.0**	ns	t = 2.62**	t = 12.18***	t = 7.64***	t = 10.14***
Vigorous activities frequency	$r$ c = 0.32***	$r$ = 0.39***	$r$ = 0.27***

Note. Vigorous activity frequency: “In the past 7 days, how many days did your child do vigorous physical activities for 30 min or more?” (no days; 1 day; 2–3 days; 4–5 days; 6–7 days); ANOVA = analysis of variance; ns = not significant at p < .05; *p < .05; **p < .01; ***p < .001.

^aPearson correlation coefficient.

^b t-Value from t-test.

^cSpearman’s rho.