Table 1 Questionnaire constructs and items
From: Handpad: a virtual mouse for controlling laptops in a smart home
Construct | Item |
|---|---|
Performance expectancy | P1: I found the system useful/useless in fulfilling the purpose of the activity P2: Using the system enabled me to accomplish tasks more quickly/slowly P3: Using the system increased/decreased my productivity |
Effort expectancy | E1: My interaction with the system was clear and understandable E2: It would be easy/difficult for me to become skilled in using the system E3: I found the system easy/difficult to use E4: Learning to operate the system was easy/difficult for me |
Attitude toward using technology | Al: Using the system is a bad/good idea A2: The system makes tasks more/less interesting A3: Using the system is fun/boring A4: I like/dislike using the system |
Social influence | S1: People who influence my behavior would be impressed/unimpressed if they saw me using the system S2: People who are important to me would be impressed/unimpressed if they saw me using the system S3: I would be impressed/unimpressed with someone if I saw him or her using the system S4: I think/don’t think people who use the system have more prestige than those who do not |
Facilitating conditions | F1: I have/don’t have the resources necessary to use the system F2: I have/don’t have the knowledge necessary to use the system F3: The system is/is not compatible with other systems I use |
Self-efficacy | I could complete a job or task using this system.. SE1: if there were no one around to tell me what to do as I go SE2: if I could call someone for help if I got stuck SE3: if I had a lot of time to complete the task for which the software was provided SE4: if I had only the built-in help facility for assistance |
Anxiety | ANX1: I feel apprehensive/fearless about using the system ANX2: It scares me to think that I could lose a lot of information using the system by hitting the wrong key ANX3: I hesitate to use the system for fear of making mistakes I cannot correct ANX4: The system is somewhat intimidating/encouraging to me |
Behavioral intention | BI1: I would/wouldn’t like to use the system |