Table 7.

PCA based on polychoric correlations.

Variable	Factor 1	Factor 2	Factor 3
1	0.689	0.453	0.421
2	0.693	0.441	0.261
3	0.461	0.787	0.223
4	0.857	0.371	0.419
5	0.835	0.383	0.470
6	0.683	0.459	0.472
7	0.358	0.818	0.368
8	0.564	0.236	0.454
9	0.694	0.307	0.558
10	0.494	0.875	0.353
11	0.655	0.436	0.691
12	0.581	0.530	0.615
13	0.406	0.304	0.812
14	0.408	0.491	0.686
15	0.477	0.321	0.814
16	0.697	0.308	0.611
17	0.600	0.516	0.723
18	0.593	0.197	0.615
19	0.281	0.754	0.450
20	0.285	0.215	0.735
21	0.512	0.257	0.658
22	0.560	0.439	0.726

Structure matrix.

Polychoric correlation matrices: 500. Promax rotation, Kappa value of 4. Number of components: 3.