“…These studies have been limited in their sample selection (e.g., Barrett and Barrett, 2001; Helzer et al, 2006; Kaminer et al, 2006; Kranzler et al, 2004; Lee, Choi, and Beal, 2006; Toll et al, 2006; Vivoda and Eby, 2006), variety of method use (e.g., Armeli et al, 2008; Baer, Saroiu, and Koutsky, 2002; Herbenick et al, 2011; Kiene et al, 2009; Moloney et al, 2009; Park, Armeli, and Tennen, 2004), topical focus (e.g., Armeli et al, 2008; Baer, Saroiu, and Koutsky, 2002; Herbenick et al, 2011; Kiene et al, 2009; Moloney et al, 2009; Park, Armeli, and Tennen, 2004), and time span of data collection (e.g., Aldridge-Gerry et al, 2011; Merz and Roesch, 2011). Although these studies have made important contributions to the usage of new technologies in data collection, few, if any, studies have attempted frequent measurement using self-administered methods on a probability-based sample.…”