“…A key finding in this research is that these measures are often empirically predictive of attitudes and behaviors targeted by ad messages. The relationships between PE and actual ad effectiveness have been demonstrated for a range of social issues addressed in PSAs, including binge drinking, child safety, marijuana and other drug use, physical activity, sexually transmitted diseases, and calls to HIV testing hotlines, among others (e.g., Alvaro et al, 2013;Davis, Uhrig, Bann, Rupert, & Fraze, 2011b;Dillard, Shen, & Vail, 2007a;Dillard et al, 2007b). Based on this research, PE is useful in assessing the likelihood of the success of potential campaign messages before a campaign is aired when large-scale efficacy pretesting for behavioral impact is impractical (Yzer, LoRusso, & Nagler, 2015).…”