Ecological Momentary Intervention of Implementation Intentions Delivered by Text Message to Reduce Cigarette Smoking

To reduce smoking, this text messaging intervention will use a self-regulatory strategy, Implementation Intentions (II) to deliver appropriate alternative responses to cigarette smoking. Participants will create personalized II messages before starting the two-week intervention period. Then during the intervention period, after receiving Ecological Momentary Assessments (EMAs), participants will be micro-randomized to receive the EMI-II. During the EMA + EMI-II period, participants will complete five daily EMAs. After approximately 40% of these EMAs, participants will also receive the personalized EMI-II by text messaging.