“…Rogers' model for the innovation-decision process (see Figure 1) incorporates the five perceived characteristics of the innovation with other factors, such as prior conditions and (Gulati & Williams, 2010), social media usage by public relations practitioners (Avery, Lariscy, Amador, Ickowitz, Primm & Taylor, 2010;Curtis, Edwards, Fraser, Gudelsky, Holmquist, Thornton & Sweetser, 2010;Eyrich, Padman & Sweetser, 2008;Tindall, Waters & Morton, 2010), and social media usage and other internet communication techniques related to student learning (Liao, 2005). It has also proved a valuable resource for people who are seeking to measure the diffusion of innovations within various systems, such as public service (Avery, Lariscy, Amador, Ickowitz, Primm & Taylor, 2010) and the educational system (Zimmerman & Yohon, 2008).…”