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Table 2 Reliability statistics for total scale and subscales

From: Cross-cultural adaptation and validation of a Brazilian version of an instrument to assess impairments related to oral functioning of people with Down syndrome

Variable Number of Items Cronbach alpha(n=157) ICC(95% CI)(n=57)
Total scale 20 0.80 0.88 (0.80-0.93)
Subscales    
 Eating 4 0.72 0.88 (0.79-0.93)
 Communication 6 0.70 0.83 (0.71-0.89)
 Parafunction 6 0.49 0.78 (0.64-0.87)
 Symptoms 4 0.70 0.83 (0.71-0.90)