“…The research on persuasion, extending such investigations to a much wider array of domains, has focused on changes in individuals' attitudes and the conditions that seem to foster or hinder such attitudinal modification. Persuasion researchers have thus investigated relations of attitudinal change with learners' characteristics, features of the message, environmental situation in which the communication takes place, and motives influencing the processing of information (Alexander, Buehl, & Sperl, 2001;Chaiken, 2000;Hynd, 2001;Mason, 2001;Murphy, 2001;Murphy, Long, & Esterly, 2003;Petty & Cacioppo, 1986;Pintrich, Marx, & Boyle, 1993;Woods & Murphy, 2001).…”