“…Using text messages tailored to participants’ baseline smoking characteristics have been shown to reduce number of cigarettes smoked (Haug, Schaub, Venzin, Meyer, & John, 2013) and to improve long-term quit rates (Skov-Ettrup et al, 2014). To date, studies delivering feedback through text messages and other technology based on participants’ disease-relevant characteristics have been conducted for psychiatric disorders (Shapiro et al, 2010) including substance use (Ondersma, Grekin, & Svikis, 2011). Technology-enhanced treatments, including text messages, for substance use disorders benefit from feedback about quit progress (Free et al, 2011) or factors that might predict lapses in abstinence (Chih et al, 2014).…”