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Study of interviewers of CVVM (in context of the total survey error)
Štohanzlová, Iva ; Buriánek, Jiří (advisor) ; Vinopal, Jiří (referee)
The thesis deals with the survey, specifically its quality and the associated total survey error. Particularly it is focused on those activities, which are linked with the activity of interviewer. Subsequently, this is related to interviewers of the Public Opinion Research Centre. The first part deals with the concept of total survey error. It summarizes the basic concepts and possible points of view on error and data quality. The work also deals with the complexity of the total error and of interdependence of its components. Today's new concepts of research quality are introduced. Briefly it is mentioned the history of surveys, of their methodology and quality. Another part is from the perspective of data quality focused on the interviewer's work and possible influences on the course of questioning, which are associated. The various activities with regard to possible sources of error are discussed. From this perspective, it is mapped and evaluated the activity of interviewers of CVVM and some improvement of work with interviewers is designed.
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Comparison of selected data collection techniques of quantitative research
Utler, Richard ; Tahal, Radek (advisor) ; Forst, Václav (referee)
The thesis analyses the differences that result from using of specific data collection method, computer assisted telephone interviewing (CATI) and computer assisted personal interviewing (CAPI). The main findings are based on election model built by research agency TNS Aisa for elections to the Chamber of Deputies of the Parliament of the Czech Republic in 2013. The aim of the thesis is to determine whether the chosen method of data collection influences the results of the estimated electoral preferences, to determine in which sociodemographic categories it is happening and whether the differences in the obtained data are related to the ideological orientation of the political parties. The dependence of the results on the data collection method is assessed by the chi-quadrate independence test. Further, through personal interviews with researchers, it is determined at what stage of the research process the data may be distorted and what its possible causes are. The benefit of the thesis is the finding that the chosen method of collection influences the established preferences among voters aged 30-44, university graduates and voters living in Prague. In these groups, the left-hand side ČSSD is preferred more by personal interviewing and right-handed TOP 09 through telephone interviewing. The collection of data itself was evaluated by the most risky phase of the research process, in which possible distortion could occur. While the accuracy of personal interviewing depends largely on the interviewer's personality, the sources of distortion of the telephone inquiry result more from the nature of the use of the phone itself.
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Electronic Questionnaires
Kurková, Michaela ; Komárková, Lenka (advisor) ; Hajdíková, Taťána (referee)
The bachelor's thesis deals with electronic questionnaires. Questionnaires features are compared and the simplicity or complexity of the usage and the creation of an electronic questionnaire for common user sis investigated. Principles for creating questionnaires regarding particular usage of the individual questions during interview are the part sof this thesis. Important and therefore the main part of this work is the focus on the individual web-sites that offer the opportunity to create their own electronic questionnaire. In conclusion, the findings from the websites and the evaluation of the best website for creating electronic questionnaires for common users are described.
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