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Table 5 Convergent & discriminant validity - Pearson’s R correlation

From: Psychometric properties of Patient Reported Outcome Measures (PROMs) in patients diagnosed with Acute Respiratory Distress Syndrome (ARDS)

  EQ-5D-3 L (Utility) SF-6D (Utility) SF-12 PCS (Utility) SF-12 MCS (Utility) SGRQ Symptoms score (Utility) SGRQ Activity score (Utility) SGRQ Impact score (Utility) SGRQ Total score (Utility)
EQ-5D-3 L (Utility) 1.00        
SF-6D (Utility) 0.77 1.00       
SF-12 PCS 0.60 0.62 1.00      
SF-12 MCS 0.49 0.67 −0.07 1.00     
SGRQ Symptoms Score −0.35 −0.43 −0.30 −0.39 1.00    
SGRQ Activity Score −0.38 −0.44 −0.46 −0.19 0.58 1.00   
SGRQ Impact Score −0.47 −0.52 −0.43 −0.35 0.71 0.77 1.00  
SGRQ Total Score −0.45 −0.52 −0.46 −0.31 0.78 0.91 0.95 1.00
  1. Correlation Coefficients in bold were not significant at 95 % confidence