Compositional representation (CoDa) of the agenda-setting of the opinion makers on politics in the Spanish written press during the 2015 General Election

Abstract

This article presents and develops a compositional analysis with representation of biplots, as an innovative proposal for a methodological approach to representation the theory of the agendasetting about the political opinion of the opinion makers in the written press. For this purpose, a content analysis of the opinion articles on politics is carried out of the newspapers El País, El Mundo, ABC, La Razón and La Vanguardia in the period of the Spanish general elections of 2015, to later apply the compositional method that allows representation the agenda setting theory, taking into account proportionality of topics and surpassing the traditional correlational methods. The results prove the methodological feasibility of the model, while providing an unexplored view on the case under study and shed light on the agenda-setting theory.