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  1. Fulltext. Controlled trial of the effect of length, incentives, and follow-up techniques on response to a mailed questionnaire.

    Article - En anglais

    Fulltext.

    Mailed questionnaires are an economical method of data collection for epidemiologic studies, but response tends to be lower than for telephone or personal interviews.

    As part of a follow-up study of volunteers who provided a brief health history and blood sample for a blood specimen bank in 1989, the authors conducted a controlled trial of the effect of length, incentives, and follow-up techniques on response to a mailed questionnaire.

    Interventions tested included variations on length of the questionnaire, effect of a monetary incentive, and effect of a postcard reminder versus a letter accompanied by a second questionnaire.

    Response was similar for the short (16-item, 4-page) and long (76-item, 16-page) questionnaire groups.

    The monetary incentive did not improve the frequency of response.

    The second mailing of a questionnaire was significantly better than a postcard reminder in improving responses (23% vs. 10%). It is important to systematically test marketing principles to determine which techniques are effective in increasing response to mailed questionnaires for epidemiologic studies.

    Mots-clés Pascal : Etude en condition contrôlée, Epidémiologie, Méthodologie, Questionnaire, Enquête par correspondance, Réponse, Taux, Motivation, Evaluation, Collecte donnée, Homme

    Mots-clés Pascal anglais : Controlled environment study, Epidemiology, Methodology, Questionnaire, Mail inquiry, Response, Rate, Motivation, Evaluation, Data gathering, Human

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0049642

    Code Inist : 002B30A01A1. Création : 31/05/1999.