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Understanding People's Switching Intentions of Health Apps from Exterior and Interior Drivers

Appendix. Questionnaire items
Part I Questionnaire items
Attractive alternatives (Jones et al., 2000; Hou and Shiau, 2020)
AA1: If I needed to change the current Health App, there are other good Health Apps to

choose from.
AA2: I would probably be happy with the operations and functions of another Health App.
AA3: Compared to the current Health App, there are other Health Apps with which I

would probably be equally or more satisfied.
AA4: Compared to the current Health App, there are not very many other Health Apps
with which I could be satisfied.

Social influence (Mathieson, 1991; Wong et al., 2019; Chong et al., 2022)

SI1: People who are important to me would want me to switch the current Health App.
SI2: People who influence my behavior would think I should switch the current Health
App.

SI3: People whose opinions I value would prefer me to switch the current Health App.

Dissatisfaction with the current health app (Liao et al., 2011; Bhattacherjee et al., 2012;
Fan and Suh, 2014; Hou and Shiau, 2020)
DIS1: I feel dissatisfied about my overall experience of the current Health App use.

DIS2: I feel displeased about my overall experience of the current Health App use.
DIS3: I feel frustrated about my overall experience of the current Health App use.
DIS4: I feel terrible about my overall experience of the current Health App use.

DIS5: I feel dissatisfied about the demand of the current Health App use.

Procedural switching costs (Fan and Suh, 2014)
PSC1: It would take a lot of mental effort to familiarize myself with a Health App’s
operations and functions after switching.

PSC2: I would have to expend a lot of mental effort to learn about the operations and
functions offered by a Health App.
PSC3: It would take a lot of time to familiarize myself with a Health App’s operations and

functions after switching.

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