| Measurement Items |
| Loneliness (α = 0.95) |
| In general, I feel like I lack companionship |
| In general, I feel like I am often left out of social situations |
| In general, I feel isolated from others |
| Privacy concerns (α = 0.93) |
| I feel that the voice AI assistant protects my personal privacy |
| I feel that my transactions are safe when I am shopping using the voice AI assistant |
| The voice AI assistant has an adequate number of security features |
| I feel like my privacy is protected when I am using the voice AI assistant |
| I trust that the voice AI assistant will not misuse my personal information |
| I trust that this voice AI assistant will not provide my information to others sites without my permission |
| Social attraction of voice AI (α = 0.89) |
| I think I could have a good time with my voice AI device |
| I think my voice AI device could be a friend of mine |
| I would enjoy a casual conversation with my voice AI device |
| I would like to spend more time with my voice AI device |
| Satisfaction (α = 0.83) |
| Overall, I am satisfied with my voice AI device |
| Overall, interacting with a voice AI device is emotionally satisfying and pleasant |
| Overall, the functions provided by a voice AI device meet my needs |
| I am satisfied with my decision to purchase a voice AI device |
| Intention of continued use of voice AI (α = 0.82) |
| I plan to keep using a voice AI device in the future |
| I want to continue using a voice AI device |
| I intend to recommend a voice AI device to my friends |