Table 3.
Psychometric Properties of the Final Versions of Both Sub-Scales for the KEPAQ
| Rasch Model Expectation | KEPAQ-E | KEPAQ-F | |
|---|---|---|---|
| Number of items | 7 | 9 | |
| Response categories | Ordered | Ordered | Ordered |
| PSI | >2.00 | 2.43 | 3.19 |
| Number of misfitting items | 0 | 0 | 0 |
| Variance explained by measure | >50% | 62.48% | 61.30% |
| Eigenvalue First PCA contrast | <3.0 | 1.43 | 1.98 |
| DIF | Non-significant | Non-significant | Non-significant |
Abbreviations: PSI, Person Separation Index; PCA, principal component analysis of residuals; DIF, differential item functioning.