Table 2 Item reduction analysis – Cronbach sensitivity analysis for GU domain
From: Psychometric properties of a prostate cancer radiation late toxicity questionnaire
Deleted Question # | Domain | GU 4-item | GU 6-item | GU 11-item |
|---|---|---|---|---|
q13 | Frequency (s) | 0.485 | 0.481 | 0.470 |
q14 | Nocturia (s) | 0.518 | 0.502 | 0.488 |
q15 | Frequency/Nocturia (b) | 0.328 | 0.364 | 0.381 |
q16 | Dysuria I (s) | 0.518 | ||
q17 | Dysuria II (s) | 0.518 | ||
q18 | Dysuria (b) | 0.504 | ||
q19 | Hematuria (s) | 0.511 | ||
q20 | Hematuria (b) | 0.520 | ||
q21 | Incontinence I (s) | 0.533 | 0.489 | 0.463 |
q22 | Incontinence II (s) | 0.497 | 0.471 | |
q23 | Incontinence (b) | 0.529 | 0.504 | |
Raw Cronbach Coefficient Alpha | 0.545 | 0.529 | 0.515 |