Skip to main content

Table 4 Reliability and validity coefficients for WHOQOL-AGE, EUROHIS-QOL and WHOQOL-OLD short form version 1, in the 18–49 and 50+ age groups

From: Validation of an instrument to evaluate quality of life in the aging population: WHOQOL-AGE

 

WHOQOL-AGE

EUROHIS-QOL

WHOQOL-OLD

18-49 years

   

 Cronbach’s alpha

0.89

0.85

0.72

 Mean inter-item correlation

0.39

0.41

0.34

 Convergent validity (CV)

0.73 (0.70, 0.76)

0.74 (0.71, 0.77)

0.63 (0.58, 0.67)

 Discriminant validity (DV)

0.35 (0.29, 0.41)

0.34 (0.28, 0.40)

0.36 (0.29, 0.42)

 95% CI CV-DV

(0.29, 0.47)

(0.31, 0.49)

(0.19, 0.36)

50+ years

   

 Cronbach’s alpha

0.92

0.87

0.80

 Mean inter-item correlation

0.46

0.46

0.44

 Convergent validity (CV)

0.75 (0.73, 0.77)

0.76 (0.74, 0.79)

0.69 (0.67, 0.71)

 Discriminant validity (DV)

0.37 (0.33, 0.40)

0.36 (0.33, 0.40)

0.35 (0.31, 0.39)

 95% CI CV-DV

(0.34, 0.42)

(0.37, 0.45)

(0.29, 0.37)

  1. CV = Pearson’s correlation coefficient (95% CI) with the Satisfaction With Life (SWL) item; DV = Pearson’s correlation coefficient (95% CI) with the net affect score; 95% CI CV-DV = 95% confidence interval for the difference between the convergent and the discriminant validity coefficients.
Back to article page

Health and Quality of Life Outcomes

ISSN: 1477-7525

Contact us