Table 1.

Internal consistency of Cronbach's Alpha (Gliem and Gliem, 2003).

S/N	Cronbach's alpha, α	Internal consistency
1	α ≥ 0.8	Excellent
2	0.8 > α ≥ 0.7	Good
3	0.7 > α ≥ 0.5	Satisfactory
4	α < 0.5	Poor