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Table 1 Item analysis, reliability and discrimination for SCIP-A

From: Is the Satisfaction with Cancer Information Profile (SCIP) valid for tailoring information for patients with head and neck cancer?

Item Item mean Item-total correlation Item discrimination Item Delta
1. Unwanted side-effects 0.78 0.63 0.61 0.62
2. Risks of side-effects 0.74 0.73 0.72 0.76
3. Risks of complications 0.59 0.66 0.89 0.92
4. Experience of side-effects 0.56 0.64 0.89 0.95
5. Interferes with medication 0.72 0.39 0.56 0.84
6. Feel after treatment 0.78 0.68 0.61 0.68
7. Ability to work 0.81 0.52 0.44 0.60
8. Financial support 0.61 0.41 0.61 0.98
9. Further treatment 0.78 0.59 0.61 0.74
10. Effect on appearance 0.81 0.59 0.50 0.69
11. Long term impact 0.76 0.50 0.50 0.80
12. Recovery time 0.67 0.53 0.61 0.89
13. Impact on QoL 0.61 0.63 0.78 0.95
14. Patient support 0.69 0.63 0.72 0.93
Scale KR-20 0.89    
Scale Delta 0.92