Seminar paper from the year 2010 in the subject Politics - International Politics - Topic: European Union, grade: A-, Central European University Budapest, language: English, abstract: I have analysed the questionnaire I have used in my MA thesis: the type of survey, sample size, sampling technique, sampling and non-sampling errors, margin of error, questionnaire design (response scale, general considerations, open-ended vs. closed-ended questions, reliability and validity) and missing data.