Uwarunkowania stopnia zwrotu ankiet pocztowych w Polsce w świetle badań eksperymentalnych

Oleg Gorbaniuk

Oleg Gorbaniuk Katolicki Uniwersytet Lubelski

Słowa kluczowe: ankieta pocztowa; stopień zwrotu; szybkość zwrotu; anonimowość; loteria; temat; długość; zawiadomienie; sponsor; przypomnienie; powtórne wysłanie; premia

Abstrakt

The basic task of the experimental studies related in the article was to learn about the specificity of the Polish population as far as response of potential respondents is concerned to marketing research conducted with the use of the method of postal survey. To this end significance of effect of 15 variables on the return rate of the questionnaires was checked. The variables were distinguished on the basis of analysis of the relevant literature as well as of study results and Polish university teachers' experiences. A900 person random sample was drawn with the help of acomputer algorithm that was representative of the whole of adult Lublin residents with respect to age and sex. The whole drawn sample was divided into 16 experimental groups, each group numbering 50 subjects, and one control numbering 100 subjects. Each of the distinguished groups represented a different variable that was studied.

The study results show that enclosing an envelope for the reply, reminding of the reply, enclosing a greater sum of money with the questionnaire, and a higher education and older age of the possible respondents had a positive effect on the percentage of returned questionnaires. The percentage was decreased when the envelopes containing the questionnaires were franked, the volume of the questionnaires was bigger, the survey was under the auspices of a private study centre, the subject was prenotified about his participation in the survey and when too small a sum of money was offered for the participation (50 gr). However, such variables as the subject of the survey, anonymity of the respondents, a repeated dispatch of the questionnaires, lottery and the sex of the respondents did not have a significant effect on the degree of return in the light of the obtained results. If anonymity was not guaranteed, or respondents were offered taking part in the study in return for filling in the questionnaire, and in the case of female respondents we can only talk about tendencies to decrease the return rate.

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