Table 4. Multilevel regression models with moderators for use of conversational agent.
| B (SE) | 95% CI | Omnibus test QM | P value | |
|---|---|---|---|---|
| Model 1: Publication year | 5.37 | .02 | ||
| Intercept | 75.12 (32.38) | 11.66 to 138.58 | ||
| Publication year | −0.04 (0.02) | −0.07 to −0.01 | ||
| Model 2: Age | 0.09 | .76 | ||
| Intercept | 0.16 (0.26) | −0.36 to 0.68 | ||
| Participants’ average age | 0.00 (0.01) | −0.02 to 0.01 | ||
| Model 3: Type of interaction (reference: interacting with designed CAsa) |
2.14 | .14 | ||
| Intercept | 0.16 (0.09) | −0.01 to 0.33 | ||
| Wizard of OZ | −0.30 (0.20) | −0.70 to 0.10 | ||
| Model 4: Health topic (reference: mental health) | 0.02 | .99 | ||
| Intercept | 0.09 (0.11) | −0.12 to 0.31 | ||
| Promote health behavior | 0.04 (0.24) | −0.43 to 0.50 | ||
| Provide medical information and advice | 0.01 (0.31) | −0.60 to 0.62 | ||
| Model 5: Publication outlet (reference: journal publication) | 1.95 | .38 | ||
| Intercept | 0.08 (0.09) | −0.09 to 0.25 | ||
| Conference proceeding | 0.22 (0.18) | −0.13 to 0.57 | ||
| Thesis and dissertation | −0.09 (0.21) | −0.50 to 0.32 | ||
a
CAs: conversational agents.