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. 2021 Nov 12;45(12):110. doi: 10.1007/s10916-021-01785-w
Construct Indicators Variability Assessment Result
Mean Variance SD Range IQR Inclusion Exclusion Criteria
Performance Expectancy PE1 4.74 3.01 1.74 [1.0.7] 2  ✔
PE2 4.25 3.28 1.81 [1.0.7] 3  ✔
PE3 4.42 2.52 1.49 [1.0.7] 2  ✔
PE4 5.82 2.10 1.45 [1.0.7] 2  ✔
PE5 4.21 2.94 1.72 [1.0.7] 3  ✔
PE6 5.64 2.92 1.71 [1.0.7] 2  ✔
PE7 4.30 2.94 1.71 [1.0.7] 3  ✔
Effort Expectancy EE1 5.42 2.45 1.57 [1.0.7] 2  ✔
EE2 5.92 1.57 1.57 [1.0.7] 1  ✔
EE3 6.31 1.29 1.13 [1.0.7] 1  ✔
EE4 6.20 1.47 1.21 [1.0.7] 1  ✔
EE5-R 6.12 2.09 1.44 [1.0.7] 1  ✘ Loading < 0.50
EE6 5.66 1.77 1.33 [1.0.7] 2  ✔
Social Influence SI1 4.94 2.19 1.48 [1.0.7] 2  ✔
SI2 4.92 2.85 1.69 [1.0.7] 2  ✔
SI3 4.63 2.67 1.63 [1.0.7] 2  ✘ NA > Q3 + 1.5*IQRq
SI4 5.18 2.31 1.52 [1.0.7] 2  ✔
SI5-R 6.16 1.79 1.34 [1.0.7] 1  ✘ Loading < 0.50
Self-Efficacy SE1 6.67 0.70 0.84 [1.0.7] 0  ✔
SE2 5.10 5.18 2.28 [1.0.7] 3  ✘ NA > Q3 + 1.5*IQRq
SE3 6.79 0.59 0.76 [1.0.7] 0  ✔
SE4 6.03 2.08 1.44 [1.0.7] 1  ✔
Trust TR1 5.66 1.39 5.66 [1.0.7] 1  ✔
TR2-R 5.18 3.24 1.39 [1.0.7] 3  ✘ AVE < 0.50
TR3 5.66 1.84 1.36 [1.0.7] 2  ✔
Hedonic Motivation HM1 5.73 2.04 1.43 [1.0.7] 2  ✔
HM2-R 6.06 1.46 1.21 [2.0.7] 1  ✔
HM3 4.93 2.40 1.55 [1.0.7] 2  ✔
HM4 5.45 1.95 1.40 [1.0.7] 2  ✔
HM5 4.82 3.06 1.75 [1.0.7] 2  ✔
HM6 4.94 3.32 1.82 [1.0.7] 2  ✘ NA > Q3 + 1.5*IQRq
HM7-R 6.07 2.52 1.59 [1.0.7] 1  ✘ Loading < 0.50
Anxiety AN1-R 6.53 1.32 1.15 [1.0.7] 0  ✔
AN2-R 6.22 2.04 1.43 [2.0.7] 1  ✘ Loading < 0.50
AN3-R 6.00 3.30 1.82 [1.0.7] 1  ✘ Loading < 0.50
AN4-R 6.52 1.28 1.13 [1.0.7] 0  ✔
Facilitating Conditions FC1 5.25 2.01 1.42 [1.0.7] 1  ✔
FC2 6.44 1.34 1.16 [1.0.7] 1  ✔
FC3 6.97 4.74 2.18 [1.0.7] 3  ✘ NA > Q3 + 1.5*IQRq
FC4 3.25 3.85 1.96 [1.0.7] 3  ✘ NA > Q3 + 1.5*IQRq
Behavioral Intention BI1 5.88 2.13 1.46 [1.0.7] 1  ✔
BI2 5.88 2.29 1.51 [1.0.7] 1  ✔
BI3 3.69 3.51 1.87 [1.0.7] 3  ✔
BI4 4.84 3.29 1.81 [1.0.7] 2  ✘ NA > Q3 + 1.5*IQRq
BI5 5.81 1.54 1.24 [1.0.7] 2  ✔
BI6 6.22 1.79 1.34 [1.0.7] 1  ✔
BI7 4.40 3.72 1.93 [1.0.7] 3  ✔
Use-Behavior SD-DO 34.65 172.80 13.15 [0.0.49] 14  ✔
CONV-DO 12.78 31.93 5.65 [0.0.25] 8  ✔
RE-DO 13.89 146.08 12.09 [0.0.45] 17  ✔

SD Standard Deviation, NA Missing Data, IQR Interquartile range, IQRq Interquartile range of the ‘not applicable’ frequency across the questionnaire item measured