https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50841 Wed 09 Aug 2023 09:10:43 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36103 0.5) standardized loadings on their respective latent variables and all reached statistical significance (P<0.0001), supporting their relationships with the hypothesized domains. Convergent validity was strongly supported, with every domain being correlated with multiple external instruments; the majority of correlations were in the range 0.3-0.5 (in absolute values). The items comprising each domain showed good internal consistency, with the lowest value of Chronbach α at 0.80. Scores based on the short form (10-item) version of the NDI correlated strongly with the full 25-item form (tension ρ=0.88, interference ρ=0.94, eat/drink ρ=0.95, knowledge ρ=0.84 and work/study ρ=0.97; all P<0.0001). Conclusion: The NDI is a valid instrument that can be used to measure the disease-specific impact of FD on quality of life.]]> Thu 06 Feb 2020 13:08:06 AEDT ]]>