Table A1.

Constructs and measurement items

Constructs and measurement itemsSources
Subcultural appealCha (2020) 
SA1. Serving robots make people who use them different from other people
SA2. People who use serving robots are unique
SA3. People who use serving robots are considered leaders rather than followers
SA4. Customers using serving robots look great
UtilityCha (2020); Sundar et al. (2014) 
UT1. Serving robots are useful
UT2. I think the purpose of serving robots is to help employee
UT3. I think the purpose of serving robots is to help customers
UT4. Serving robots would help customers get things done
UT5. Using serving robots helps me complete tasks more efficiently than other devices of its kind
OriginalityAshfaq et al. (2021); Cha (2020) 
OR1. Serving robots are original
OR2. Serving robots are unique
OR3. Serving robots stand apart from other technology services
OR4. Serving robots are novel
OR5. Serving robots are the origin of the future restaurant service method
AttractivenessCha (2020) 
AT1. Serving robots are attractive
AT2. Serving robots are hot
AT3. Serving robots are stylish
AT4. Serving robots are cutting edge
Hedonic experienceVerleye (2015) 
HED1. Using serving robots in restaurants was a nice experience
HED2. Using serving robots in restaurants was fun
HED3. I enjoyed using serving robots in the restaurants
Cognitive experienceVerleye (2015) 
COG1. The experience of using serving robots in restaurants allowed me to keep up with new ideas and innovations
COG2. The experience of using serving robots in restaurants enabled me to come up with new ideas
COG3. I could test my capabilities through the experience of using serving robots in restaurants
COG4. The experience of using serving robots in restaurants improved my skills
COG5. The experience of using serving robots in restaurants gave me a sense of accomplishment
COG6. The experience of using serving robots in restaurants provided me with new knowledge
Personal experienceVerleye (2015) 
PER1. The experience of using serving robots in restaurants raised ideas that I can introduce to others
PER2. The experience of using serving robots in restaurants allowed me to share my knowledge with others
PER3. I made a good impression on other people through the experience of using serving robots in restaurants
Subjective well-beingLi et al. (2022a,b) 
SWB1. The serving robot experience is important to my well-being
SWB2. The serving robot experience is important to enhance my quality of life
SWB3. I felt revitalized after the experience of using serving robots in restaurants.
Revisit intentionVenkatesh et al. (2012) 
RI1. I will revisit the robot service restaurants
RI2. I will make an effort to revisit robot service restaurants in the future
RI3. If I have the opportunity to revisit robot service restaurants in the future, I will actively intend to revisit robotic restaurants
RI4. I will prioritize visiting restaurants with serving robots over those with human servers
Note(s):

Items were measured with a seven-point Likert scale from 1 = strongly disagree to 7 = strongly agree

Source(s): Authors’ own work

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