Who responds to postal questionnaires?
نویسنده
چکیده
منابع مشابه
Telephone interviews can be used to collect follow-up data subsequent to no response to postal questionnaires in clinical trials.
OBJECTIVE Follow-up data were collected using postal questionnaires and if participants did not respond, then data was collected using telephone interviews. The objectives of this study were to examine, for the two methods, how respondents differed in characteristics and whether the observed treatment difference varied. STUDY DESIGN AND SETTING A large clinical trial of lower back pain. RES...
متن کاملImaging-guided lumbar facet injections: is there a difference in outcomes between low back pain patients who remember to return a postal questionnaire and those who do not?
OBJECTIVES To determine whether data obtained from patients returning postal questionnaires accurately reflect how patients receiving imaging-guided lumbar facet injections respond. METHODS Seventy-eight patients receiving lumbar facet joint injections who returned an outcomes questionnaire (responders) were age and gender matched with 78 patients who did not return the postal questionnaire (...
متن کاملImproving response rates using a monetary incentive for patient completion of questionnaires: an observational study
BACKGROUND Poor response rates to postal questionnaires can introduce bias and reduce the statistical power of a study. To improve response rates in our trial in primary care we tested the effect of introducing an unconditional direct payment of 5 pounds for the completion of postal questionnaires. METHODS We recruited patients in general practice with knee problems from sites across the Unit...
متن کاملInvestigating the proxy effect and the saliency principle in household based postal questionnaires.
STUDY OBJECTIVE The aim was to investigate two possible sources of bias inherent in using a household based postal questionnaire, the "proxy effect", inaccurate reporting about characteristics of others, and the "saliency principle", reporting of only the most salient features. This is of importance in surveys concerned with screening the population to identify individuals with certain characte...
متن کاملWhat are the characteristics of general practitioners who routinely do not return postal questionnaires: a cross sectional study.
Postal surveys have been used for many years by researchers to obtain information about the attitudes, knowledge and self reported behaviour of general practitioners. It is widely believed that poor response rates undermine the validity of survey research, 2 but only a few studies have tackled the methodological problem of whether a low response rate matters. Non-responders to general practitio...
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ورودعنوان ژورنال:
- Journal of epidemiology and community health
دوره 40 3 شماره
صفحات -
تاریخ انتشار 1986