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Political Science Scope and Methods

Political Science Scope and Methods. Experiments in Political Science. Assignment: Example.

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Political Science Scope and Methods

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  1. Political Science Scopeand Methods Experiments in Political Science

  2. Assignment: Example Enid wants to investigate the effect of saliency of message on attitude change. From an old Ph.D. she finds a swell communication on the importance of physical sciences in a liberal education. Fortunately for her, Widget University conducts separately - English classes for engineers and liberal arts majors. Within this limitation, however, the university has matched the classes carefully on age, sex composition, socioeconomic background, and College Entrance Board Scores (both verbal and mathematical ability as well as on scores in specific subjects). Enid checks on the dean's records and is happy to find that the classes have indeed been matched to the best possible extent. Enid then delivers the message to the engineers (the salient group) and to the liberal arts students (the non-salient group). The engineers show much more attitude change. Enid concludes that message saliency increases attitude change.

  3. Experiments • Experimentation: • Lab experiments • Study of political cognition (Berinsky and Kinder) • Field experiments • Effect of canvassing, telephone calls, and mailing on turnout (Green and Gerber) • Effectiveness of “franking” – baby books and ballots (Cover and Brumberg) • Survey Experiments • Power of Stereotypes (Berinsky and Mendelberg) • War in Iraq (Berinsky)

  4. Kosovo Experiment • Theory: Frames as stories • Hypothesis: Organization of text should affect recall and choice • Treatment: ? • Measures: ?

  5. Wilson Candidate Experiment • Theory: Stereotypes – even rejected stereotypes – are pervasive information shortcuts • Hypothesis: Cuing an unacceptable social stereotype can activate an acceptable political stereotype, thereby influencing political judgments. • Treatment: ? • Measures: ?

  6. Example: Iraq War • Please give your best guess to this next question, even if you are not sure of the correct answer. As you know, the United States is currently involved in a war in Iraq. Do you happen to know how many soldiers of the U.S. military have been killed in Iraq since the fighting began in March 2003?

  7. Log (Base 10) of Estimates of U.S. Troop Deaths in Iraq, 2004

  8. Table 3: Predicted Probability of Causality Estimates

  9. Effect of Information Treatment on Support for War in Iraq Among Under-Estimators Did The U.S. Make The Right Decision in Using Military Force against Iraq? N=252; 2(1)=0.40 Pr=0.53 Has The Current War in Iraq Been Worth Fighting? N=253; 2(1)=0.71 Pr=0.40

  10. Among Over-estimators Did The U.S. Make The Right Decision in Using Military Force against Iraq? N=57; 2(1)=0.00 Pr=0.95 Has The Current War in Iraq Been Worth Fighting? N=572(1)=0.26 Pr=0.61

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