Table 3.

Descriptive Statistics of Psychosocial Variables and Physical Activity (N = 350)

Variable	Mean (SD)	Range	T value for gender difference (boys as reference group)
Family social support for physical activitya	8.93 (4.21)	1–20	0.89
Friend social support for physical activityc	11.37 (4.54)	1–20	−0.94
Internal barriers to physical activityc	5.33 (2.06)	1–15	2.76†
External barriers to physical activityd	7.08 (2.63)	1–15	0.85
Negative meanings of physical activity
Social meanings	4.58 (1.53)	1–12	0.75
Personal meanings	5.03 (1.58)	1–12	3.31†
Functional meanings	3.58 (1.38)	1–8	2.48*
Physical activity (minutes)
Vigorous	40.97 (63.57)	1–1020	−2.24*
Moderate	99.69 (100.98)	1–1020	0.03
Light	879.34 (120.44)	1–1020	1.44
Sedentary behaviors	109.29 (91.69)	1–1020	−2.88†

^*P < .05,

^†P < .01,

^‡P < .001 indicate the significance of gender difference.

^aSum score of the 4 selected variables from Table 1.

^bSum score of the 4 selected variables from Table 1.

^cSum score of the 3 selected variables from Table 1.

^dSum score of the 3 selected variables from Table 1.