Electoral Preferences Surveys before House of Deputies Elections 2002

This text describes and compares electoral preferences surveys series, which was taking place before June parliamentary elections 2002 in the Czech republic. Analysed electoral preferences were surveyed by three major Czech agencies conducting routinely public opinion surveys and publishing electoral preferences. The academic CVVM (Centre of Public Opinion Research) results were the best. CVVM predicted electoral outcome very accurately. Two private companies STEM (Centre of Empirical Research) and TNSF (Taylor Nelson Solres-Factum) were caring out surveys more frequently, but accuracy and quality of their results were worse. These private companies also were caring out surveys in every region. Quality and accuracy of regional surveys were different, but the most of them failed.