TABLE 4.

Factor analysis of subsample II.

Items	Factor loading						CITC value	Reason for deletion	Reasons for reservation
	Dimension 1	Dimension 2	Dimension 3	Dimension 4	Dimension 5	Dimension 6
S1	0.051	0.760	-0.092	0.117	0.115	0.066	0.414
S2	0.152	0.634	0.117	0.194	0.265	0.160	0.604	B
S3	0.115	0.162	0.114	0.156	0.214	0.678	0.457		D
S4	0.109	0.523	0.223	0.302	0.289	-0.075	0.569	A, B
S5	0.188	0.660	0.139	0.198	0.232	0.170	0.631	B
S6	0.232	0.245	0.164	0.145	0.052	0.640	0.497	B
S7	0.083	0.323	0.210	0.300	0.512	0.200	0.610	A, B
S8	0.067	0.398	0.420	-0.127	0.037	0.285	0.372	A, B
S9	0.164	0.139	0.048	0.677	0.226	0.129	0.542	B
S10	0.182	0.334	0.168	0.614	0.225	0.085	0.648	B
S11	0.181	0.145	0.078	0.681	0.214	0.084	0.548		D
S12	0.218	0.331	0.097	0.551	0.293	0.067	0.632	A, B
S13	0.716	0.009	0.089	0.108	0.153	0.244	0.524
S14	0.772	0.074	0.106	0.126	0.157	0.057	0.551
S15	0.705	0.206	0.189	0.134	0.169	-0.068	0.588
S16	0.563	0.178	0.151	0.245	0.172	-0.033	0.547	B
S17	0.680	0.024	0.110	0.062	0.016	0.260	0.456	B
S18	0.362	0.187	0.503	0.387	-0.104	0.043	0.557	A, B
S19	0.423	0.321	0.503	0.326	0.013	-0.041	0.649	A, B
S20	0.495	0.169	0.417	0.325	0.040	0.005	0.601	A, B
S21	0.455	0.157	0.262	0.353	0.233	0.153	0.641	A, B
S22	0.296	0.258	-0.034	0.260	0.667	0.055	0.601	B
S23	0.263	0.166	0.198	0.148	0.643	0.133	0.592	B
S24	0.105	0.211	0.252	0.150	0.682	0.057	0.553		D
S25	0.214	0.068	0.716	0.026	0.249	0.134	0.513
S26	0.234	0.010	0.638	0.183	0.296	0.129	0.551	B

Deletion criteria:

A: There were multiple factor loads, and the minimum factor load was 0.30.

B: There was no main factor load, and the minimum value of main factor load was 0.70.

C: The CITC value was less than 0.50.

Reservation criteria:

D: Factor retained to ensure that there was at least one item in each dimension without dimension reduction.