Randomized trial of leaving messages on telephone answering machines for control recruitment in an epidemiologic study.
To determine whether leaving messages on answering machines would aid control recruitment via random-digit telephone dialing, a randomized trial was conducted during 1992-1994 involving 1,323 western Washington households with answering machines.
For the experimental group, a message was left informing them about the study and promising a call-back ; for the control group, no message was left.
Leaving a message increased the response rate by about 20 percentage points (p=0.002).
More households were successfully screened for eligible controls, and individuals found eligible were more likely to participate.
Leaving a message can help to improve response rates in telephone surveys.
Mots-clés Pascal : Téléphone, Répondeur, Réponse, Taux, Méthodologie, Epidémiologie, Enquête, A domicile, Homme, Recrutement, Etats Unis, Amérique du Nord, Amérique, Répondeur téléphonique
Mots-clés Pascal anglais : Telephone, Responder, Response, Rate, Methodology, Epidemiology, Inquiry, At home, Human, Recruitment, United States, North America, America
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0471829
Code Inist : 002B30A01A1. Création : 10/04/1997.