“…By contrast, Steuer (1992) viewed interactivity from a structural perspective and defined the concept as "the extent to which users can participate in modifying the form and content of a mediated environment in real time" (p. 84) while Newhagen et al (1995) were the first to propose the concept of perceived interactivity and defined it as "the psychological sense message senders have of their own and of the receivers' interactivity" (p. 165). Nevertheless, the extant review of empirical research on interactivity literature advocates the dichotomous approach "structural versus perceptual" (Boushra, 2008;Lee, Hong, & Lee, 2006;Liu & Shrum, 2002;McMillan, 2002;Pavlov & Stewart, 2000;Song & Bucy, 2008;Song & Zinkhan, 2008;Stout, Villegas, & Kim, 2001;Wu, 1999). While the structural approach regards interactivity as a medium characteristic or a feature, and it operationalizes the actual interactivity level by varying the number and kinds of the interactive features (e.g., Fortin, 1997;Raney et al, 2003;Wu, 2005;Voorveld et al, 2011), the perceptual approach tend to view interactivity as the user's subjective experience and uses an itemized scale to measure it (e.g., Song & Bucy 2008;McMillan & Hwang 2002;Wu, 2000).…”