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Table 3 Cluster structure of Decisional Conflict Scale items

From: Development and validation of the Japanese version of the Decisional Conflict Scale to investigate the value of pharmacists’ information: a before and after study

Domain Item no. Cluster structure
   Cluster 1 Cluster 2 Cluster 3 Cluster 4 Cluster 5
Uncertainty 10 0.79 0.89 0.79 0.68 0.77
  11 0.66 0.90 0.72 0.60 0.63
  12 0.61 0.89 0.61 0.46 0.57
Informed 1 0.78 0.65 0.72 0.63 0.96
  2 0.83 0.70 0.75 0.60 0.96
  3 0.87 0.54 0.63 0.50 0.74
Values clarity 4 0.94 0.76 0.80 0.60 0.83
  5 0.96 0.73 0.76 0.60 0.79
  6 0.94 0.69 0.78 0.60 0.75
Support 7 0.69 0.60 0.88 0.53 0.65
  8 0.62 0.66 0.64 1.00 0.64
  9 0.71 0.71 0.93 0.66 0.73
Effective decision 13 0.76 0.79 0.89 0.54 0.69
  14 0.56 0.79 0.54 0.57 0.51
  15 0.65 0.89 0.75 0.65 0.59
  16 0.60 0.90 0.67 0.55 0.63
Variation explained* (%)   86.3 77.3 81.3 100.0 91.9
  Inter-Cluster   Cluster 1-2 Cluster 1-3 Cluster 1-4 Cluster 1-5
  Correlation   0.73 0.80 0.62 0.84
     Cluster 2-3 Cluster 2-4 Cluster 2-5
     0.78 0.66 0.70
      Cluster 3-4 Cluster 3-5
      0.64 0.77
       Cluster 4-5
       0.64
  1. Correlation coefficients between each item and each cluster component.
  2. Bold characters indicate the highest correlation coefficients.
  3. *Total variation explained = 83.5%.
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