Table 1.

Evaluation of Lifestyle Interventions to Treat Elevated Cardiometabolic Risk in Primary Care Use of Technology Questionnaire Constructs and Questions

CONSTRUCT, QUESTIONS
Perceived usefulness (the degree to which individuals believe that using the tool will enable them to manage their health)
1. The tool enables/would enable me to manage my health better.
2. The tool enhances/would enhance my effectiveness in managing healthcare.
3. The tool is/would be useful for managing my healthcare.
4. The tool makes/would make it easier for me to manage my health.
5. The tool offers/would offer additional health information.
6. The advantages of using the tool (would) far outweigh the disadvantages.
Perceived ease-of-use (the degree to which an individual believes that the tool will be easy to use)
1. My interaction with the tool is/would be clear and understandable.
2. It is/would be easy for me to become skillful at using the tool.
3. I (would) find the tool easy to use.
4. Learning to operate the tool is/would be easy for me.
Affect (the degree to which an individual likes using the tool)
1. Using the tool is/would be a good idea.
2. The tool makes/would make my effort to improve my health more interesting.
3. I (would) get frustrated using the tool.
4. I (would) like using the tool.
Social influence (the degree to which an individual believes that people who are important to him or her think he or she should use the tool)
1. People who influence me thought/would think that I should use the tool.
2. People who are important to me thought/would think that I should use the tool.
3. People who are important to me encouraged/would encourage me to use the tool.
4. People who influence me thought/would think that using the tool is a good idea.
Compatibility (the degree to which an individual believes that the tool fits his or her needs and available resources)
1. I have the resources necessary to use the tool.
2. I have the knowledge necessary to use the tool.
3. The tool is compatible with the way I like to do things.
4. A specific person (or group) is available for assistance with difficulties using the tool.
5. Using the tool fits well with my lifestyle.
Self-efficacy (the degree to which an individual feels confident that he or she could use the tool in different, specific conditions)
I could use the tool to manage my health…
1. if there was no one around to tell me what to do as I go.
2. if I had never used a tool like it before.
3. if I had only the user guide for reference.
4. if I had seen someone else using it before trying it myself.
5. if I could call someone for help if I got stuck.
6. if someone else had helped me get started.
7. if I had a lot of time to complete the tasks for which the tool was provided.
8. if I had just the built-in help facility for assistance.
9. if someone showed me how to do it first.
10. if I had used a similar tool before this one to perform the same tasks.
Concern (the degree to which an individual has concerns about using the tool)
1. I feel apprehensive about using the tool.
2. It scares me to think that I could lose a lot of information using the tool by hitting the wrong key.
3. I hesitate to use the tool for fear of making mistakes I cannot correct.
4. The tool is somewhat intimidating to me.
5. I am concerned about my privacy when using the tool.
Intention to use (the degree to which the individual feels he or she will use the tool in the future)
1. I will use the tool on a regular basis.
2. I predict I will use the tool.
3. I intend to use the tool in the future.
4. I will strongly recommend others to use the tool.

All constructs were assessed on a 5-point Likert scale, with 1=strongly disagree, 2=disagree, 3=neither disagree or agree, 4=agree, and 5=strongly agree. The overall score of a construct was calculated as the unweighted mean of all the constituent scale items.