Table 4 Factor structure of the sf-DCS (principal component analysis, n = 675)
Items | One factor extracted | Five factors | Three factors | ||||||
|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | ||
sf-DCS 1: I know which options are available to me. | 0.744 | - | - | - | - | - | 0.663 | ||
sf-DCS 2: I know the benefits of each option. | 0.813 | 0.750 | 0.719 | ||||||
sf-DCS 3: I know the possible risks and side effects of each option. | 0.794 | 0.742 | 0.768 | ||||||
sf-DCS 4: I am clear about which benefits matter most to me. | 0.796 | 0.782 | 0.755 | ||||||
sf-DCS 5: I am clear about which risks and side effects matter most to me. | 0.810 | 0.723 | 0.761 | ||||||
sf-DCS 6: I am clear about which is more important to me (the benefits or the risks and side effects). | 0.810 | - | - | - | - | - | - | - | - |
sf-DCS 7: I have enough support from others to make a choice. | 0.732 | 0.820 | 0.816 | ||||||
sf-DCS 8: I am choosing without pressure from others. | 0.680 | - | - | - | - | - | - | - | - |
sf-DCS 9: I have enough advice to make a choice. | 0.759 | 0.744 | 0.779 | ||||||
sf-DCS 10: I am clear about the best choice for me. | 0.880 | 0.695 | 0.654 | ||||||
sf-DCS 11: I feel sure about what to choose. | 0.884 | 0.738 | 0.671 | ||||||
sf-DCS 12: This decision is easy for me to make. | 0.834 | 0.703 | 0.665 | ||||||
sf-DCS 13: I feel I have made an informed choice. | 0.860 | 0.532 | 0.688 | ||||||
sf-DCS 14: My decision shows what is important to me. | 0.852 | 0.736 | 0.802 | ||||||
sf-DCS 15: I expect to stick with my decision. | 0.831 | 0.837 | 0.843 | ||||||
sf-DCS 16: I am satisfied with my decision. | 0.858 | 0.799 | 0.819 | ||||||