Table 5.
Overview of psychometric evidence
| Instrument name | Validity | Reliability | Responsiveness | Clinically important difference thresholds available | ||||
|---|---|---|---|---|---|---|---|---|
| Structural validity | Convergent validity | Concurrent validity | Known groups validity | Internal consistency reliability | Test-retest reliability | |||
| FertiQoL | ✓ | ✓ | X | ✓ | ✓ | X | X | X |
| FPI | ✓ | ✓ | X | X | ✓ | ✓ | X | X |
| FPS | ✓ | X | X | X | ✓ | X | X | X |
| ICQ-I | X | X | X | X | ✓ | X | X | X |
| IFQ | X | ✓ | X | ✓ | ✓ | ✓ | X | X |
FPI Fertility Problem Inventory, FPS Fertility Problem Stress, ICC Intra-class Correlation Coefficient, ICQ-I Infertility Cognitions Questionnaire adapted for Infertility, IFQ Infertility Questionnaire