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. 2021 Mar 30;9(3):e26265. doi: 10.2196/26265

Table 2.

Factor load, Cronbach alpha, average variance extracted, and composite reliability values of each variable.

Variable and index Factor load Cronbach alpha AVEa CRb
Altruism —c .875 .650 .881

AL1 .754 — — —

AL2 .792 — — —

AL3 .906 — — —

AL4 .764 — — —
Community influence — .894 .622 .892

CI1 .806 — — —

CI2 .776 — — —

CI3 .797 — — —

CI4 .772 — — —

CI5 .792 — — —
Extrinsic reward — .688 .638 .727

ER1 .842 — — —

ER2 .672 — — —
Intrinsic reward — .785 .755 .902

IR1 .918 — — —

IR2 .922 — — —

IR3 .756 — — —
Self-efficacy — .892 .628 .893

SE1 .648 — — —

SE2 .848 — — —

SE3 .853 — — —

SE4 .776 — — —

SE5 .819 — — —
Willingness to share health information — .928 .724 .929

WS1 .787 — — —

WS2 .877 — — —

WS3 .850 — — —

WS4 .910 — — —

WS5 .824 — — —

aAVE: Average variance extracted.

bCR: Critical ratio.

cNot applicable.