Hypothesised pathway | Standardised estimate | |||||
Direct effect beta coefficient (SD) | P value | Indirect effect beta coefficient (SD) | P value | Total effect beta coefficient (SD) | P value | |
Structural PU <- PEU | 0.56 (0.11) | <0.001* | 0.56 (0.11) | <0.001* | ||
PU <- Intervention effect | 0.33 (0.11) | 0.003* | 0.33 (0.11) | 0.003* | ||
PEU <- Intervention effect | 0.60 (0.18) | 0.001* | 0.60 (18) | 0.001* | ||
IU <- PU | 1.23 (0.21) | <0.001* | 1.23 (0.21) | <0.001* | ||
IU <- PEU | 0.23 (0.14) | 0.11 | 0.69 (0.14) | <0.001* | 0.92 (0.15) | <0.001* |
IU <- Intervention effect | −0.03 (0.16) | 0.87 | 0.53 (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.