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Reliability Statistics
| Scale | PSI Without Extremes | Cronbach α | Participant Scale Completion, % | FK Grade | ||
|---|---|---|---|---|---|---|
| Floor Pre/Post | Ceiling Pre/Post | Missing Data | ||||
| Eyes overall | 0.90 | 0.97 | 2/4 | 7/40 | 4 | 2.1 (0.5–5.2) |
| Eyelashes | 0.90 | 0.97 | 6/8 | 22/15 | 6 | 6.2 (5.2–8.1) |
| Upper eyelids | 0.88 | 0.97 | 9/0 | 13/59 | 7 | 5.7 (3.7–13.1) |
| Lower eyelids | 0.83 | 0.93 | 3/1 | 12/28 | 7 | 4.8 (3.6–6.7) |
Abbreviations: FK, Flesch-Kincaid grade level; Pre/Post, pretreatment vs posttreatment; PSI, Person Separation Index.
