EVALUATION RESEARCH AND POLITICAL SCIENCE: AN ARGUMENT AGAINST THE DIVISION OF SCHOLARLY LABOR

Political science might have been the birthplace of evaluation research, but it has instead been unreceptive to it for a number of reasons. Hofferbert's suggestion that political scientists become involved by studying the impact of policy on democratic processes does not take into account the ferment that has been taking place in the field of evaluation. Political scientists should not conduct evaluation studies using the same methodology they normally use because these may not produce the kind of information needed for improving policies or programs. A disciplinary division of labor is impractical for a number of reasons. Instead, they should use a policy sciences framework, which contains normative elements and focuses on potentials for change, among other things. Copyright 1986 by The Policy Studies Organization.

Reinforcement vs. change: The political influence of the media

The aim of this paper is to analyze competition between two ideological media outlets that want to influence their viewers so as to boot the number of votes for their preferred political party. We consider two ways of influencing viewers, which correspond to two prominent theories borrowed from the literature on Sociology: the “Reinforcement Approach” and the “Attitudinal Orientations Approach”. Our findings show that the aim of influencing viewers generally pushes media outlets to differentiate their opinions, and that the extend of this differentiation deeply depends on the viewers’ behavior. More precisely, we observe that if the viewers channel hop, media outlets end up differentiating their opinions more than if the viewers receive all their information from just one media. Copyright Springer Science+Business Media, LLC 2007Ideological media, Influence, Channel hopping,