CoQuit Study for Smoking Cessation

Participants were asked to give a "gut-level response" to 14 words used to describe various attributes of cognitive dissonance (e.g., uncomfortable, shame). Response options for each attribute were on a 7-point scale (1 = does not apply at all, 7 = applies very much). A mean score was computed across all 14 words. A higher score was associated with greater levels of cognitive dissonance. In addition to the baseline and six-week follow-up assessment of cognitive dissonance, participants were asked five times during the 25 days of using the app. The five times were after completing the "Costs" activity on day 3, the "Quit Letter" activity on day 6, the "Planning for Pitfalls" activity on day 10, the "Staying Smoke Free" activity on day 14, and the "Letter to Youth" activity on day 19.

A one-item question that asked about the number of cigarettes smoked per day. Response options were on a 6-point scale, where 1 = 5 or less, 2 = 6-10, 3 = 11-15, 4 = 16-20, 5 = 21-30, and 6 = 31 or more. A higher score indicates a greater number of cigarettes smoked per day.

Participants were asked to rate what best describes how they currently think about quitting smoking. The one item had a 1-point scale (0 = I have no thought about quitting smoking, 2 = I think I need to consider quitting smoking someday, 5 = I think I should quit smoking, but I am not quite ready, 8 = I am starting to think about how to reduce the number of cigarettes I smoke a day, 10 = I am taking action to quit smoking, 11 = I have stopped smoking). A higher score was associated with greater readiness to quit smoking. In addition to the baseline and six-week follow-up assessment of readiness to quit, participants were asked five times during the 25 days of using the app. The five times were after completing the "Costs" activity on day 3, the "Quit Letter" activity on day 6, the "Planning for Pitfalls" activity on day 10, the "Staying Smoke Free" activity on day 14, and the "Letter to Youth" activity on day 19.