Table 2.

Results of item analysis(31items)

Item	CR	Item-total correlations	Cronbach’s α if item deleted	Note
Q1	8.980*	0.552*	0.892	Retained
Q2	11.009*	0.588*	0.891	Retained
Q3	11.765*	0.576*	0.892	Retained
Q4	11.911*	0.608*	0.891	Retained
Q5	8.675*	0.609*	0.891	Retained
Q6	9.041*	0.573*	0.892	Retained
Q7	9.215*	0.469*	0.894	Retained
Q8	9.183*	0.560*	0.892	Retained
Q9	8.047*	0.556*	0.892	Retained
Q10	8.589*	0.542*	0.892	Retained
Q11	9.781*	0.572*	0.892	Retained
Q12	7.510*	0.420*	0.895	Retained
Q13	9.155*	0.566*	0.892	Retained
Q14	5.818*	0.537*	0.893	Retained
Q15	6.936*	0.490*	0.893	Retained
Q16	7.728*	0.527*	0.893	Retained
Q17	9.013*	0.532*	0.893	Retained
Q18	8.653*	0.543*	0.893	Retained
Q19	7.887*	0.447*	0.894	Retained
Q20	6.498*	0.425*	0.895	Retained
Q21	6.400*	0.430*	0.894	Retained
Q22	5.547*	0.423*	0.895	Retained
Q23	7.280*	0.435*	0.894	Retained
Q24	6.448*	0.431*	0.895	Retained
Q25	7.161*	0.446*	0.894	Retained
Q26	6.642*	0.431*	0.895	Retained
Q27	7.086*	0.410*	0.895	Retained
Q28	7.503*	0.407*	0.895	Retained
Q29	8.407*	0.434*	0.894	Retained
Q30	7.310*	0.402*	0.895	Retained
Q31	8.215*	0.408*	0.895	Retained

^*P < 0.01