Test-retest Spearman correlation for items with an ordinal response
| ITEM | SPEARMAN CORRELATION COEFFICIENT | INTERPRETATION* |
|---|---|---|
| PO can significantly enhance diagnostic accuracy of AOM | 0.760 | Good |
| PO can significantly enhance diagnostic accuracy of OME | 0.737 | Good |
| PO is too technically difficult to perform | 0.322 | Fair |
| I feel comfortable using PO | 0.673 | Good |
| PO is too time-consuming | 0.714 | Good |
| PO needs a cooperative patient | 0.682 | Good |
| My colleagues use PO regularly | 0.453 | Good |
| I often doubt my findings on PO | 0.410 | Good |
| PO yields little additional information | 0.762 | Good |
| Duration of antimicrobial therapy | 0.785 | Good |
| Time to reexamine children with AOM | 0.722 | Good |
| Referral for ventilation tube placement | 0.699 | Good |
| Comprehensive knowledge score | 0.661 | Good |
↵* A Spearman correlation coefficient of 0.00–0.29 represents poor test-retest reliability; 0.30–0.39 is fair; 0.40–0.79 is good; 0.80–1.00 is very good.
AOM—acute otitis media, OME—otitis media with effusion, PO—pneumatic otoscopy.