Developing a Mobile APP-Supported Learning System for Evaluating Health-Related Physical Fitness Achievements of Students

Table 8

The results of Hotelling T² for the demographic variables on students’ self-efficacy (experimental group).

	Variables	Descriptive statistics			Hotelling
			Mean	SD	F value
Gender	Male	22	4.22	0.67	0.75	0.64
	Female	26	4.02	0.64
Grade	Grade 4	21	4.00	0.73	1.25	0.29
	Grade 6	27	4.20	0.78
Phone usage experience	Weekly phone using times <5	25	4.10	0.62	1.06	0.41
	Weekly phone using times ≥5	23	4.12	0.70
Exercise habit	Weekly exercise minutes ≤80	22	3.74	0.62	5.10	0.01
	Weekly exercise minutes >80	26	4.42	0.50
Beverage drinking habit	Beverage consumption per week (cans) <3	24	4.12	0.69	1.04	0.42
	Beverage consumption per week (cans) ≥3	24	4.10	0.63
BMI	BMI ≤ 2	38	4.13	0.64	1.20	0.32
	BMI > 2	10	4.01	0.73

Exercise habit: weekly exercise minutes >80, no exercise habit: weekly exercise minutes ≤80, divide by the median, .