Table 1.

Participant Usability and Satisfaction Ratings (n=16^*)

			Number of Participants Selecting Each Response
Statement	Strongly Disagree	Disagree	Disagree Somewhat	Neutral	Agree Somewhat	Agree	Strongly Agree
Usability
The mobile intervention is easy to use.	0	0	0	1 (6.3%)	4 (25.0%)	5 (31.3%)	6 (37.5%)
I can use the mobile intervention successfully every time.	0	1 (6.3%)	0	0	6 (37.5%)	4 (25.0%)	5 (31.3%)
I learned to use the mobile intervention quickly.	0	0	1 (6.3%)	2 (12.5%)	4 (25.0%)	6 (37.5%)	3 (18.8%)
I easily remember how to use the mobile intervention.	0	0	2 (12.5%)	1 (6.3%)	4 (25.0%)	5 (31.3%)	4 (25.0%)
The mobile intervention is easy to learn to use.	0	0	0	3 (18.8%)	3 (18.8%)	6 (37.5%)	4 (25.0%)
The mobile intervention does everything I would expect it to do.	0	0	0	3 (18.8%)	5 (31.3%)	1 (6.3%)	7 (43.8%)
The mobile intervention works the way I want it to work.	0	0	0	2 (12.5%)	5 (31.3%)	3 (18.8%)	6 (37.5%)
Satisfaction
The mobile intervention is useful.	1 (6.3%)	0	0	0	2 (12.5%)	7 (43.8%)	6 (37.5%)
The mobile intervention gives me more control over the activities in my life.	0	0	0	2 (12.5%)	2 (12.5%)	6 (37.5%)	6 (37.5%)
The mobile intervention meets my needs.	0	0	0	3 (18.8%)	1 (6.3%)	8 (50.0%)	4 (25.0%)
I am satisfied with the mobile intervention.	0	0	0	2 (12.5%)	1 (6.3%)	4 (25.0%)	9 (56.3%)
I would recommend the mobile intervention to a friend.	0	0	0	0	3 (18.8%)	3 (18.8%)	10 (62.5%)
The mobile intervention is fun to use.	0	0	0	1 (6.3%)	4 (25.0%)	2 (12.5%)	9 (56.3%)
The mobile intervention helps me to be more effective.	0	0	1 (6.3%)	0	3 (18.8%)	4 (25.0%)	8 (50.0%)
The mobile intervention helps me to be more productive.	0	0	0	1 (6.3%)	3 (18.8%)	5 (31.3%)	7 (43.8%)
I feel I need to have the mobile intervention.	0	0	0	2 (12.5%)	4 (25.0%)	4 (25.0%)	6 (37.5%)

^*One participant moved out of state at the end of the trial, and was not available for post-trial assessments.