Browsing by Subject "News media use"
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Item The affective citizen communication model : how emotions engage citizens with politics through media and discussion(2011-05) Valenzuela, Sebastián; Gil de Zúñiga, Homero; McCombs, Maxwell E.; Stroud, Natalie J.; Jarvis Hardesty, Sharon; Coleman, RenitaThis dissertation seeks to improve our understanding of the process by which emotions enable citizens to learn about public affairs and engage in political activities during electoral campaigns. It advances a theoretical model that incorporates the dynamics of emotions, various forms of media use, interpersonal communication and political involvement. This affective citizen communication model integrates into a single framework the insights of affective intelligence theory (Marcus, Neuman, & MacKuen, 2000) and the work on communication mediation (McLeod et al., 1999, 2001) and its two iterations, cognitive mediation (Eveland, 2001) and citizen communication mediation (Cho et al., 2009; Shah et al., 2005, 2007). More specifically, it suggests that the effects of emotions triggered by political candidates (e.g., enthusiasm, anxiety, anger) on knowledge of the candidates’ stands on issues and on political participation are largely mediated by communication variables, including news media use, political discussion and debate viewing. By positing emotions as an antecedent of both mediated and interpersonal communication, the study extends current research based on affective intelligence theory. At the same time, the study adds emotions to communication mediation processes, which to date have been studied from a mostly cognitive perspective. To test the relationships between the variables identified in the affective citizen communication model, I rely on panel survey data collected for the 2008 and 2004 U.S. presidential elections by the American National Election Studies (ANES) and the National Annenberg Election Surveys (NAES), respectively. Two types of structural equation models are tested, cross sectional (to relate individual differences) and auto-regressive (to relate aggregate change across waves). Results suggest that positive emotions spark media use, whereas negative emotions spark political discussions, and both types of communication behavior influence issue knowledge and participation in campaign activities. Furthermore, the theorized structure is found to perform better than an alternative structure where communication variables cause positive and negative emotions. Thus, results provide strong support for the proposed affective citizen communication model. Refinements to the proposed model, connections with existing theories of political communication, such as agenda setting and partisan selective exposure, and directions for future research are also discussed.Item Explicating the central role of news media use in the process of political participation : toward establishing an integrative structural model of news media effects on political participation(2010-08) Jung, Nak-won; Coleman, RenitaIn order to fully explicate the role of news media in individuals’ political participation, this dissertation aims at establishing an integrative structural model that specifies relationships among news media use, its antecedents and mediators of its influence on political participation. The proposed model is comprised of key factors of political participation that previous research has identified. The relational structure is based on models and theories relevant to prediction of political behaviors. Specifically, the model integrates (a) communication mediation model, which posits that communication behaviors (i.e., news media use and interpersonal discussion) mediate the effects of socio-demographic variables (i.e., income, education, age, gender, and race) and political dispositions (i.e., political interest, partisanship and ideology) on political outcomes; (b) agenda-setting theory, which posits that frequent exposure to news media increases the salience of news objects in audiences’ minds; (c) cognitive mediation model, which posits that elaborative and collective thinking is a prerequisite to produce political outcomes of news exposure; (d) theory of planned behavior, which posits that human behavior can be best predicted by three proximal variables (i.e., attitudes, subjective norms, and perceived behavioral control); (e) O-S-R-O-R (orientations-stimulus-reasoning-orientations-response) model of communication effects, which provides a parsimonious framework of effect process. Using the structural equation modeling (SEM) method, this dissertation analyzes the 2008 American National Election Studies data set to test the validity of the proposed structural model. Results indicate that frequent exposure to news media stimulates attentive news use as well as intra- and interpersonal reasoning, which produce a wide range of political outcomes. Two reasoning behaviors (i.e., self-reflection and interpersonal political discussion) are critical mechanisms that linked news media use to various political outcomes including political participation. Personal-psychological mediators, such as strength in affects, personal traits, opinions about political issues, campaign interest, political knowledge, attitude strength, perceived ability of political parties and political efficacy all significantly mediate the influence of news media use on political participation. News media use mediates significant portion of effects that a set of preexisting variables have on political participation as well as various types of political orientations.