Table 1.

Final Item Pool

Code	Item (Response)	Outcome
0a	When you are tempted to smoke, but want not to, what sorts of things do you THINK in order to keep from smoking? Put a limit on how much you’re allowed to smoke. (Yes, No)	Failed inter-item correlation assumption
0b	Considering only the occasions when you feel you shouldn’t smoke, what percent of the time do you go ahead and smoke the cigarette anyhow? (0–100)	Failed inter-item correlation assumption
0c	How often do you smoke your cigarette halfway or limit how many puffs you take in an effort to limit your smoking? (1 = Never, 2 = Less than once per day, 3 = 1–2 times per day, 4= 3–10 times per day, 5 = More than 10 times per day)	Poor factor loading
0d	Do you have a limit or target that you set for yourself of how many cigarettes to smoke in a day? (Yes, No)	Omitted during respecification
1	Do you ever try to limit the number of cigarettes you smoke? (Yes, No)	Included in final model
2	Do you have a limit or target that you set for yourself of how many cigarettes to smoke in a week? (Yes, No)	Included in final model
3	Do you plan out or ration your cigarettes for each day or week? (1 = Never to 5 = Always)	Included in final model
4	How often do you deliberately refrain from lighting up a cigarette to keep your smoking rate down? (1 = Never, 2 = Less than once per day, 3 = 1–2 times per day, 4= 3–10 times per day, 5 = More than 10 times per day)	Included in final model