Table 4. Questionnaire measurement items.

Item	Strongly disagree (%)	Disagree (%)	Neither agree nor disagree (%)	Agree (%)	Strongly agree (%)	Mean (%)	Standard deviation (%)	Variance (%)
PU_1	1.2	1.2	4.9	56.1	36.6	4.26	0.717	0.541
PU_2	3.7	1.2	6.1	54.9	34.1	4.15	0.877	0.768
PEU	2.4	9.8	15.9	47.6	24.4	3.82	0.995	0.991
PIM_1	1.2	3.7	9.8	42.7	42.7	4.22	0.861	0.741
PIM_2	6.1	2.4	12.2	36.6	42.7	4.07	1.079	1.204
BI_1	1.2	1.2	4.9	47.6	45.1	4.34	0.741	0.549
BI_2	1.2	6.1	7.3	45.1	40.2	4.17	0.900	0.810
LI	2.4	2.4	6.1	42.7	46.3	4.28	0.879	0.772
PW	3.7	8.5	12.2	46.3	29.3	3.89	1.042	1.087
PC	1.2	4.9	7.3	45.1	41.5	4.21	0.871	0.759