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. 2021 Sep 30;23(9):e27122. doi: 10.2196/27122

Table 4.

Discriminant validity of the constructs. The square roots of the average variance extracted values for comparisons among constructs are shown.a

Constructs Performance expectancy Effort expectancy Social influence Facilitating conditions Perceived risk Resistance bias Behavioral intention Use behavior
Performance expectancy 0.954 b
Effort expectancy 0.767 0.944
Social influence 0.717 0.784 0.889
Facilitating conditions 0.665 0.712 0.716 0.875
Perceived risk −0.334 −0.378 −0.358 −0.314 0.738
Resistance bias −0.373 −0.435 −0.360 −0.368 0.563 0.897
Behavioral intention 0.724 0.750 0.782 0.802 −0.369 −0.394 0.971
Use behavior 0.600 0.644 0.611 0.630 −0.326 −0.424 0.785 0.777

aThe items on the diagonal represent the square root of the average variance extracted value; the off-diagonal elements are correlation estimates.

bNot applicable.