Table 2.

Usability items with SD>1 for beta study.

Likert usability questions with SD > 1	Average	SD
31. When I began using the cell phone, I had no idea what I was doing.a	4.00	1.15
7. Even after I used the application for several days, I needed a lot of help to use it.a	3.86	1.07
19. The phone application gave too many reminders.a	3.86	1.07
27. I remembered to take the phone with me wherever I went.	3.86	1.07
10. I picked the wrong picture many times.a	3.14	1.07
28. I didn’t want people to know I was using the application.a	3.14	1.21
16. I often took pictures of products.	3.00	1.67

^a Denoted reverse coding. Items have been reverse coded so a high score reflects high disagreement.