A semi-systematic literature review of research carried out on the evolution of the concept of Euroscepticism since the term first was reportedly used in 1986 with special focus on articles published around the year before the 2019 European Parliament elections and to this date. The thesis was conducted with a particular interest in gathering more knowledge on using an evidence-based method in political science. The purpose was twofold, therefore: one to see how the concept itself has evolved in research, in terms of definition and salience as well as in terms of measuring and explanatory factors, and the other to see if the method used is appropriate to this purpose.
From the data gathered, it can be said that the method is pertinent and relevant when assembling research from a widespread and multifaceted area in terms of geography and content, since it is meant to avoid the pitfalls of ‘picking and choosing’ data. The articles thus uncovered have shown that there is a red thread in research on Euroscepticism, that its context has changed and therefore its content, and that Euroscepticism 2020 is a salient issue.