Table 4. Summary of studies that developed their own questionnaires.
| Study | Country of origin | Questionnaire development | Mode of administration | Results compared with any other measure? |
|---|---|---|---|---|
| Choong et al31 | United Kingdom | CB, PAC | Parents | Perceived Stress Index (PSI) |
| Hrisos et al15 | United Kingdom | CB, LB, PAC | Parents | Revised Rutter Parents Scale for Preschool Children |
| Leach36 | United Kingdom | CB | Parents | — |
| Newsham20 | United Kingdom | CB | Parents | — |
| Newsham37 | United Kingdom | CB | Parents | — |
| Packwood et al26 | United States of America | CB | Self (adults) | — |
| Parkes32 | United Kingdom | CB | Parents | — |
Abbreviations: CB, clinician based; LB, literature based; PAC, parent of amblyopic child; PB, patient based.