Table 1 Item analysis of KOOS-ACL-Tr
From: Validity and reliability study of the Turkish version of KOOS-ACL questionnaire
Items | Mean * | Standard deviation | Item-total correlation coefficient | Item discrimination strength index | Rotated factor load |
|---|---|---|---|---|---|
Item F1 | 1.211 | 1.081 | 0.949 | 6.650 | 0.894 |
Item F2 | 1.150 | 1.252 | 0.939 | 10.100 | 0.724 |
Item F3 | 1.060 | 1.085 | 0.916 | 8.246 | 0.794 |
Item F4 | 1.263 | 1.249 | 0.939 | 8.140 | 0.764 |
Item F5 | 0.752 | 1.062 | 0.932 | 7.597 | 0.853 |
Item F6 | 0.737 | 0.968 | 0.929 | 9.361 | 0.675 |
Item F7 | 0.774 | 0.918 | 0.936 | 6.378 | 0.958 |
Item F8 | 0.820 | 1.154 | 0.902 | 6.905 | 0.836 |
Item S1 | 1.692 | 1.483 | 0.745 | 29.248 | 0.846 |
Item S2 | 1.955 | 1.440 | 0.717 | 29.128 | 0.947 |
Item S3 | 2.286 | 1.374 | 0.882 | 22.062 | 0.931 |
Item S4 | 2.361 | 1.151 | 0.925 | 11.187 | 0.655 |