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Table 5 Overview of the results of testing for unidimensionality with subscales belonging to the same domain

From: Item analysis using Rasch models confirms that the Danish versions of the DISABKIDS® chronic-generic and diabetes-specific modules are valid and reliable

Domain Subscale 1 Subscale 2 Observed correlation Expected correlation p
Mental Independence Emotion .62 .71 .009
Social Inclusion Exclusion .43 .79 < .001
Physical Limitation Treatment .51 .58 < .001
  1. None of the tests support unidimensionality indicating that the subscales represent two different aspects of each domain