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Table 7 Cronbach’s α coefficient and ICC for the HELIA and its subscales

From: Development and validation of a short and easy-to-use instrument for measuring health literacy: the Health Literacy Instrument for Adults (HELIA)

DomainNumber of itemsCronbach’s α coefficientIntraclass Correlation Coefficient (ICC)
Reading40.720.86
Access to information60.790.91
Understanding70.860.81
Appraisal40.770.76
Decision making/behavioral intention120.890.87
The scale330.930.84