手法を比較

	Issue Framing Experiment	Motivated Reasoning Experiment
分野	政治心理学	政治心理学
系統	Process / pipeline	Process / pipeline
提唱年	1997	2006
提唱者	Thomas Nelson; Dennis Chong & James Druckman	Charles Taber & Milton Lodge
種類	Survey/lab experiment	Survey/lab experiment
原典	Nelson, T. E., Clawson, R. A., & Oxley, Z. M. (1997). Media framing of a civil liberties conflict and its effect on tolerance. American Political Science Review, 91(3), 567-583.	Taber, C. S., & Lodge, M. (2006). Motivated skepticism in the evaluation of political beliefs. American Journal of Political Science, 50(3), 755-769.
別名	Framing Effects Experiment, Emphasis Framing Study, Equivalence Framing Experiment	Directional Motivated Reasoning Study, Biased Assimilation Experiment, Disconfirmation Bias Paradigm
関連	4	4
概要	An issue framing experiment manipulates how a political issue is described, emphasizing different considerations, to test how framing shifts opinion. Nelson, Clawson and Oxley's (1997) classic study showed that framing a Klan rally as a free-speech issue versus a public-order issue changed tolerance judgments, and Chong and Druckman (2007) systematized framing theory and the experimental methods used to estimate framing effects.	A motivated reasoning experiment tests whether people process political information to reach conclusions they are directionally motivated to hold rather than the most accurate ones. Building on Kunda's (1990) theory and crystallized by Taber and Lodge (2006), these designs expose partisans to attitude-congruent and incongruent arguments and measure biased assimilation, disconfirmation bias, attitude polarization, and selective exposure.