Table 3

Structural equation modelling: parameter estimates for the hypothesised pathways: direct, indirect and total effects, beta coefficient and p values

Hypothesised pathwayStandardised estimate
Direct effect
beta coefficient (SD)
P valueIndirect effect
beta coefficient (SD)
P valueTotal effect
beta coefficient (SD)
P value
Structural
PU <- PEU
0.56 (0.11)<0.001*0.56 (0.11)<0.001*
PU <- Intervention effect0.33 (0.11)0.003*0.33 (0.11)0.003*
PEU <- Intervention effect0.60 (0.18)0.001*0.60 (18)0.001*
IU <- PU1.23 (0.21)<0.001*1.23 (0.21)<0.001*
IU <- PEU0.23 (0.14)0.110.69 (0.14)<0.001*0.92 (0.15)<0.001*
IU <- Intervention effect−0.03 (0.16)0.870.53 (0.17)0.002*0.50 (0.21)0.02*
  • Goodnessof fit results R2: R-squared = 0.145; standardised root mean squaredresidual = 0.048, root mean square error of approximation = 0.074, CFI = 0.975,TLI = 0.965.

  • CFI, Comparative Fit Index; IU, intention of use; PEU, perceived ease of use; PU, perceived usefulness; TLI, Tucker-Lewis Index.