title: Who else responds to postal questionnaires? Are those involved in the subject of the study more likely to do so?
abstract: In a postal screen to identify people who had attended hospital outpatient departments, it was predicted that attenders would be more likely to respond than non-attenders. An experiment was set up to explore this. The response rates were 76 per cent among attenders compared with 70 per cent for the others--a difference which did not reach significance at the 5 per cent level.
authors.forename: A
authors.initials: A
authors.lastname: Cartwright
authors.forename: J
authors.initials: J
authors.lastname: Windsor
mesh_terms: D003625:Data Collection; D005544:Forecasting; D006306:Health Surveys; D006801:Humans; D011795:Surveys and Questionnaires