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Verschillende dataverzamelingsmethoden in CQI onderzoek: een overzicht van de respons en representativiteit van respondenten.

Zuidgeest, M., Boer, D. de, Hendriks, M., Rademakers, J. Verschillende dataverzamelingsmethoden in CQI onderzoek: een overzicht van de respons en representativiteit van respondenten. TSG: Tijdschrift voor Gezondheidswetenschappen: 2008, 86(8), p. 455-462.
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Introduction: This article describes different methods of data collection using consumer quality index (CQI) surveys. The response and representativeness of respondents are also examined. Method: From publications of CQI measurements, the following aspects were reported: data collection method(s), number of reminders, number of questions in the survey, response, comparison of respondents and the sample for age and gender. Using correlational analyses we also studied how the response was related to various other features of CQI measurements. Results: For the majority of CQI surveys, questionnaires were distributed by mail (22). Occasionally, data were collected by interviews (2), the Internet (1) or a combination of internet and mail data collection (3). The response was the highest with interviews and the lowest for the Internet. The response did not correlate with the number of questions in the questionnaire. Men were more likely to respond to an Internet questionnaire compared to women and men were generally underrepresented in data collections through mail. Conclusion: CQI questionnaires were mainly distributed by mail. The response varied within and between methods of data collection. A combination of methods may improve the response. The methods of data collection affects the demographic composition of the group respondents.(aut.ref.)