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A comparison of a computer-based questionnaire and personal interviews in determining oral health-related behaviours

Chestnutt, Ivor Gordon, Morgan, Maria Zeta, Hoddell, Ceri E. and Playle, Rebecca Anne 2004. A comparison of a computer-based questionnaire and personal interviews in determining oral health-related behaviours. Community Dentistry And Oral Epidemiology 32 (6) , pp. 410-417. 10.1111/j.1600-0528.2004.00160.x

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Abstract

Abstract – Background: A major challenge for survey-based research is to reduce bias. In an interview, subjects may claim more favourable behaviour to please the interviewer or comply with accepted norms. Objectives: This study aimed to: (i) determine if adolescents give different answers when using a self-completed computer-administered oral health questionnaire compared with a personal interview, (ii) ascertain if responses to a face-to-face interview are dependant on whether a dentist or nonclinical researcher administered the questionnaire and (iii) examine if responses were influenced by whether they undertook the computer questionnaire first or second. Methods: A randomized crossover design was used to investigate the responses to 15 closed questions on oral health-related practices. These were administered to 453, 12-year olds attending school dental inspections in South Wales. Results: A total of 449 valid pairings of computer/interview responses were available for analysis. Responses to the questionnaire variables demonstrated good to very good levels of agreement (? 0.68–0.90) when comparing the face-to-face and computer-administered questionnaire. With the exception of questions on dental attendance, responses were not influenced by whether the questions were posed by the research officer or the dentist. A minimal order effect could be detected when undertaking the computer-administered questionnaire first. Conclusions: Whilst a study such as this cannot determine the true validity of the responses achieved, it is concluded that a computer-administered questionnaire, comprising closed questions, can be utilized to determine oral health-related behaviours in oral health surveys.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Dentistry
Subjects: R Medicine > RK Dentistry
Uncontrolled Keywords: adolescents; computer or computer based; crossover trial; oral health behaviours; questionnaire; research methodology
ISSN: 1600-0528
Last Modified: 18 Oct 2017 08:31
URI: http://orca-mwe.cf.ac.uk/id/eprint/647

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