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Table 5 The Distributional and Scale Characteristics of the TSQM

From: Validation of a general measure of treatment satisfaction, the Treatment Satisfaction Questionnaire for Medication (TSQM), using a national panel study of chronic disease

  Scale Mean (SD) Cronbach's Alpha % Scores at Scale Ceiling Skewness**
TSQM Scales VAS Method (n = 287) Likert Method (n = 280) VAS Method Likert Method VAS Method Likert Method VAS Method Likert Method
Effectiveness 69.7 (21.8) 68.6 (20.4) .87 .88 13.0% 8.9% -.47 -.76
Side effects 84.3 (19.2) 83.7 (19.5) .84 .88 44.3% 41.1% -1.1 -1.2
Convenience 84.9 (19.7) 83.2 (18.7) .86 .90 44.9% 36.8% -1.3 -1.1
Global Satisfaction 78.0 (20.4) 71.1 (22.6) .80 .86 25.1% 12.9% -.81 -.97
  1. ** Skewness Standard Error VAS Method = .14, Likert-type Method = .15