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. 2021 Apr 21;23(4):e27069. doi: 10.2196/27069

Table 3.

Cronbach alpha, composite reliability, and average variance extracted.

Dimension Cronbach α Composite reliability Average variance extracted
PUa .85 0.82 0.53
PEb .83 0.81 0.52
HLc .82 0.70 0.54
PSd .95 0.90 0.75
CEe .78 0.80 0.50
AUf .86 0.84 0.57
BIg .92 0.93 0.69

aPU: perceived usefulness.

bPE: perceived ease of use.

cHL: health literacy.

dPS: privacy and security.

eCE: computer self-efficacy.

fAU: attitude toward use.

gBI: behavioral intention to use.