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In this project, we will train a ChatGPT to provide real-time answers to questions related to the SIV for older adults in Hong Kong.
This study aims to evaluate the usability, acceptability, and preliminary effectiveness of the ChatGPT among 50 community-living people aged 65 years and above in Hong Kong.
The primary objectives are to evaluate the usability and acceptability (including the extent of usage and subjective experiences of behavioural, cognitive, and affective engagement) of the ChatGPT at the end of the 4-week intervention period (T1).
The secondary objectives are to evaluate the following conditions measured at T1, as compared to those measured at baseline (T0):
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| ChatGPT group | Experimental | Participants will be invited to use a trained ChatGPT which answers questions related to seasonal influenza vaccination. The functions can be used repeatedly throughout the intervention period (4 weeks), and participants will be free to spend as much time as they want on such functions. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Access to a trained ChatGPT | Behavioral | Participants will be invited to use a trained ChatGPT which answers questions related to seasonal influenza vaccination. The functions can be used repeatedly throughout the intervention period (4 weeks), and participants will be free to spend as much time as they want on such functions. |
| Measure | Description | Time Frame |
|---|---|---|
| Perceived usability | Perceived usability assessed by the validated Chinese version of the 10-item Perceived Usability Scale (SUS) | 1 month |
| Extent of usage documented by the ChatGPT | Extent of usage documented by the ChatGPT | 1 month |
| Subjective experiences related to behavioural, cognitive, and affective engagement | Subjective experiences related to behavioural, cognitive, and affective engagement measured by the validated Twente Engagement with eHealth Technologies Scale (TWEETS) | 1 month |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Zixin Wang, PhD | Contact | +852 22528740 | wangzx@cuhk.edu.hk |
| Name | Affiliation | Role |
|---|---|---|
| Zixin Wang, PhD | Chinese University of Hong Kong | Principal Investigator |
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 40921067 | Derived | Wang Z, Tsang TH, Yu FY, Fang Y, Chen S, Sun F, Mo PKH, Wong KC. Effectiveness, Usability, and Acceptability of ChatGPT With Retrieval-Augmented Generation (SIV-ChatGPT) in Increasing Seasonal Influenza Vaccination Uptake Among Older Adults: Quasi-Experimental Study. J Med Internet Res. 2025 Sep 8;27:e76849. doi: 10.2196/76849. |
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