Table 4. Intrarater reliability of Hardy scales.
| Scale and raters | Reliability (95% CI) | Percent agreement |
|---|---|---|
| Sellar a full scale | ||
| Faculty rater | 0.78 (0.60–0.88) | 25/35 (71%) |
| Resident rater 1 | 0.79 (0.61–0.89) | 22/35 (63%) |
| Resident rater 2 | 0.68 (0.45–0.83) | 24/35 (69%) |
| Sellar a dichotomous scale | ||
| Faculty rater | 0.88 (0.77–0.94) | 34/35 (97%) |
| Resident rater 1 | 0.49 (0.19–0.71) | 26/35 (74%) |
| Resident rater 2 | 0.65 (0.40–0.81) | 30/35 (86%) |
| Suprasellar b full scale | ||
| Faculty rater | 0.86 (0.74–0.93) | 23/35 (66%) |
| Resident rater 1 | 0.90 (0.80–0.95) | 25/35 (71%) |
| Resident rater 2 | 0.85 (0.72–0.92) | 29/35 (83%) |
| Suprasellar b dichotomous scale | ||
| Faculty rater | 0.80 (0.64–0.90) | 34/35 (97%) |
| Resident rater 1 | 1 (1–1) | 35/35 (100%) |
| Resident rater 2 | 0.36 (0.04–0.62) | 32/35 (91%) |
Abbreviation: CI, confidence interval.
a
Full scale: Grades 0–IV. Dichotomous scale: Grades 0–III versus Grade IV.
b
Full scale: Types 0–D. Dichotomous scale: Types 0–C versus Type D.