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@article{ Schnell2014,
 title = {The accuracy of pre-election polling of German general elections},
 author = {Schnell, Rainer and Noack, Marcel},
 journal = {Methods, data, analyses : a journal for quantitative methods and survey methodology (mda)},
 number = {1},
 pages = {5-24},
 volume = {8},
 year = {2014},
 issn = {2190-4936},
 doi = {https://doi.org/10.12758/mda.2014.001},
 abstract = {"Pre-election polls are the most prominent type of surveys. As with any other survey, estimates
are only of interest if they do not deviate significantly from the true state of nature. Even though pre-election polls in Germany as well as in other countries repeatedly show noticeably inaccurate results, their failure appears to be quickly forgotten. No comparison considering all available German data on actual election results and the confidence intervals based on pre-election polls has been published. In the study reported
here only 69% of confidence intervals covered the election result, whereas statistically 95% would have to be expected. German pre-election polls even just a month ahead are therefore much less accurate than most introductory statistical textbooks would suggest." (author's abstract)},
 keywords = {Wahlforschung; election research; Prognose; prognosis; Wahlverhalten; voting behavior; Schätzung; estimation; öffentliche Meinung; public opinion; Umfrageforschung; survey research; Stichprobenfehler; sampling error; Bundestagswahl; election to the Bundestag; Bundesrepublik Deutschland; Federal Republic of Germany}}