Table 1 Item reduction analysis – Cronbach coefficient alpha analysis (3 subscales)
From: Psychometric properties of a prostate cancer radiation late toxicity questionnaire
Deleted Questionnaire Item | GI (n = 93) | GU (n = 97) | Sexual (n = 85) |
|---|---|---|---|
q1 | 0.848 | ||
q2 | 0.851 | ||
q3 | 0.853 | ||
q4 | 0.853 | ||
q5 | 0.841 | ||
q6 | 0.851 | ||
q7 | 0.848 | ||
q8 | 0.848 | ||
q9 | 0.851 | ||
q10 | 0.843 | ||
q11 | 0.848 | ||
q12 | 0.831 | ||
q13 | 0.481 | ||
q14 | 0.502 | ||
q15 | 0.458 | ||
q21 | 0.268 | ||
q22 | 0.497 | ||
q23 | 0.528 | ||
q24 | 0.699 | ||
q25 | 0.588 | ||
q26 | 0.756 | ||
q27 | 0.574 | ||
q28 | 0.560 | ||
Raw Cronbach Coefficient alpha | 0.859 | 0.529 | 0.700 |