Table 3.

Postprotocol Survey Assessment of Feasibility

Item	No	Yes
Did you have problems turning the GPS device on or off?	100.0 (14)	0.0 (0)
Did you forget to charge the GPS device at night?	92.9 (13)	7.1 (1)
Did you forget where to put the GPS device?	100.0 (14)	0.0 (0)
Do you think the GPS device was too small?	85.7 (12)	14.3 (2)
Do you think the GPS device was too big?	100.0 (14)	0.0 (0)
Did the GPS device run out of battery during the day?	64.3 (9)	35.7 (5)
Overall, was it easy to use the GPS device?	7.1 (1)	92.9 (13)
Did you have any problems with charging the GPS device?	85.7 (12)	14.3 (2)
Did you have any problems with carrying or wearing the GPS device?	100.0 (14)	0.0 (0)
Were you able to solve any problems you had with the GPS?	35.7 (5)	64.3 (9)
Did you feel comfortable wearing the GPS device?	7.1 (1)	92.9 (13)
Did the GPS device get in the way of your everyday activities?	100.0 (14)	0.0 (0)
Was the battery life of the GPS device too short?	14.3 (2)	85.7 (12)
Did you forget to wear the GPS device daily?	85.7 (12)	14.3 (2)
Did using the GPS device cause you to alter your behavior?	100.0 (14)	0.0 (0)
Were there any activities that were difficult to do with the GPS device on?	100.0 (14)	0.0 (0)
Was the GPS device inconvenient to wear or carry?	100.0 (14)	0.0 (0)
Was it a chore to wear the GPS device?	78.6 (11)	21.4 (3)
Did you like the look of the GPS device?	21.4 (3)	78.6 (11)
I would participate in another GPS research study.	0.0 (0)	100.0 (14)
Would you participate in a 2-week long GPS-based research study?	0.0 (0)	100.0 (14)
Would you participate in a GPS-based research study that tracked where you went for a week and then again for a week 3 months later?	0.0 (0)	100.0 (14)
Would you participate in a GPS-based research study that tracked where you went for 2 weeks and then again for 2 weeks 3 months later?	0.0 (0)	100.0 (14)
Would you download a smartphone application that tracked where you went using GPS technology for the purposes of a research study?	14.3 (2)	85.7 (12)