Table 3.
Prior specifications for intercepts of outcome variables.
| Variable | Distribution | Hyperparameters, mean (SD) | Prior source |
| Use2 weeks | Normal | 0 (7) | Diffuse priora centered on 0, scale limits |
| PEOUb4 weeks | Normal | 0 (25) | Diffuse prior centered on 0, scale limits |
| PEOU12 weeks | Normal | 0 (25) | Diffuse prior centered on 0, scale limits |
| PUc12 weeks | Normal | 0 (25) | Diffuse prior centered on 0, scale limits |
| Use12 weeks | Normal | 0 (50) | Diffuse prior centered on 0, scale limits |
aDiffuse prior: noninformative prior distributions that assign broad probabilities across a wide range of parameter values, reflecting minimal prior beliefs or knowledge.
bPEOU: perceived ease of use.
cPU: perceived usefulness.