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Table 4 Internal consistency reliability for each of the two MacTSQ subscales

From: Design and development of the MacTSQ measure of satisfaction with treatment for macular conditions used within the IVAN trial

Item N Item Cronbach’s alpha if item deleted
Information provision and convenience Safety, efficacy and discomfort
11 Continue 0.683  
10 Information 0.706  
15 Encourage others 0.668  
14 Length of course 0.713  
1 Treatment 0.716  
13 Time at clinic 0.734  
6 Apprehensive   0.709
3 Discomfort or pain   0.728
9 Safety   0.735
2 Side effects   0.745
5 Unpleasant   0.759
4 Treatment working   0.774
Subscale alpha 0.740 0.776
Eigenvalues 4.477 1.652
  1. Italicized figures represent the pattern and structure coefficients of the 2-factor solution