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Table 4 Item Scaling Tests: Convergent and Disconvergent validity for OMQoL dimensions

From: Validity and reliability of the Persian version of the oropharyngeal Mucositis quality of life scale

Dimensions Number of Items Item-Convergent Validity (Range of Correlation) Correlation > 0.4 Scaling success Item-Discriminant Validity (Range of Correlation)
Symptoms 9 − 0.94 9 100% 0.15–0.43
Diet 10 0.78–0.90 10 100% 0.37–0.50
Social function 7 0.90–0.96 7 100% 0.18–0.26
Swallowing 5 0.92–0.95 5 100% 0.23–0.34