Table 3.

Participants’ perceptions of the automated mobile contingency management intervention 4 weeks after a scheduled quit attempt (N=16).

Perceptionsa	Agree or strongly agree, n (%)	Neither agree or disagree, n (%)	Disagree or strongly disagree, n (%)
The smartphone app was easy to use overall	12 (75)	2 (13)	0 (0)
My overall opinion of the smartphone app was positive	11 (69)	2 (13)	1 (6)
The smoking monitor was easy to use	11 (69)	1 (6)	2 (13)
It was difficult to blow into the smoking monitor while keeping my face in front of the smartphone screen	4 (25)	3 (19)	7 (44)
It was easy to tell how much I had earned for quitting each day/week by checking the payment screen	12 (75)	1 (6)	1 (6)
The opportunity to earn financial incentives for quitting helped keep my motivation for quitting high	11 (69)	3 (19)	0 (0)
Earning financial incentives for quitting helped me to feel more confident in my ability to quit	11 (69)	3 (19)	0 (0)
Earning financial incentives for quitting smoking helped me to successfully quit smoking	5 (31)	7 (44)	2 (13)

^aA total of 88% (14/16) participants completed the perception survey 4 weeks after the scheduled quit date. As a result, the frequencies across the rows do not add up to 100%. The omitted 13% reflects the missing responses of 2 participants who were among the first half of the participants enrolled.