Porovnat metody

	Anchoring Vignettes	Survey Experiment	Vignette Experiment
Obor	Political Science	Political Science	Political Science
Rodina	Process / pipeline	Process / pipeline	Process / pipeline
Rok vzniku	2004	2011	—
Tvůrce	Gary King, Christopher Murray, Joshua Salomon & Ajay Tandon	Experimental political science; synthesized by Diana Mutz	Survey and social-psychological research traditions
Typ	Survey measurement-correction method	Randomized experiment embedded in a survey	Randomized experiment using short described scenarios
Původní zdroj	King, G., Murray, C. J. L., Salomon, J. A., & Tandon, A. (2004). Enhancing the Validity and Cross-Cultural Comparability of Measurement in Survey Research. American Political Science Review, 98(1), 191–207.	Mutz, D. C. (2011). Population-Based Survey Experiments. Princeton, NJ: Princeton University Press. ISBN: 9780691144528	Atzmüller, C., & Steiner, P. M. (2010). Experimental Vignette Studies in Survey Research. Methodology, 6(3), 128–138.
Další názvy	King anchoring vignettes, Vignette anchoring method, DIF correction via vignettes, Anchoring vignette rescaling	Population-based survey experiment, Survey-embedded experiment, Question-wording experiment, Framing experiment	Vignette study, Experimental vignette, Scenario experiment, Text-vignette experiment
Příbuzné	3	4	3
Shrnutí	Anchoring vignettes are a survey method for making self-assessments comparable across people and cultures. When respondents are asked to rate their own political efficacy, health, or freedom on an ordinal scale, different groups interpret the scale differently — what one culture calls 'a lot of freedom' another calls 'some.' This differential item functioning makes raw self-reports incomparable. The method, introduced by King, Murray, Salomon, and Tandon in 2004, has each respondent also rate several hypothetical characters described identically to everyone, then uses those vignette ratings to recover where each respondent's own scale lies and to rescale their self-assessment onto a common metric.	A survey experiment embeds a randomized experiment inside a survey: respondents are randomly assigned to different versions of a question, frame, or stimulus, and their answers are compared to estimate a causal effect. By combining the internal validity of randomization with the representative samples and rich measurement of survey research, survey experiments — especially population-based ones — let political scientists draw causal inferences about how information, framing, or message attributes shape public attitudes and behavior.	A vignette experiment presents respondents with a short, carefully constructed description of a person, situation, or scenario — a vignette — in which one or more features are experimentally manipulated, and then asks for a judgment, attitude, or intended action. By randomizing which version of the scenario each respondent reads, the researcher isolates the causal effect of each manipulated feature on the elicited judgment, combining the realism of a concrete scenario with the causal leverage of an experiment.