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The impact of incentives and interview methods on response quantity and quality in diary- and booklet-based surveys

Der Einfluss von Anreizen und Interviewmethoden auf Antwortmenge und Antwortqualität in Diary- und Booklet-basierenden Befragungen
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Bonke, Jens; Fallesen, Peter

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Abstract "This paper investigates the impact on response quantity and quality of a diary- and booklet-based survey of using different interview methods and lottery prizes. In addition to a conventional questionnaire the survey included time-diaries for household members and a expenditure booklet for recording the previous month's spending by the household. The respondents could choose to use either CATI (Computer-Assisted Telephone Interviewing) or web-based CAPI (Computer-Assisted Personal Interviewing) for the different parts of the survey. Lottery prizes varied during the survey period, and the prizes were doubled if they had used only the CAPI method. The response rate was significantly affected by the size of the lottery prizes, and the doubling of these prizes for using the web had a high impact on the number of respondents choosing this method. The implication was that also the response quality increased as a result of the impact on the number of web interviews, because this method was found to yield a significantly higher quality for the diary, booklet and questionnaire information." (author's abstract)
Keywords Denmark; response behavior; survey; quality; quantity; incentive system; reward; method; comparison of methods; computer-assisted telephone interview; online survey; questionnaire; Internet; telephone interview; gambling; money; comparison; comparative research
Classification Research Design; Methods and Techniques of Data Collection and Data Analysis, Statistical Methods, Computer Methods
Document language English
Publication Year 2010
Page/Pages p. 91-101
Journal Survey Research Methods, 4 (2010) 2
ISSN 1864-3361
Status Published Version; peer reviewed
Licence Deposit Licence - No Redistribution, No Modifications