Technique Bias in Measuring Acts of Altruism: The Case of Voluntary Blood Donation
Lightman, Ernie S.
Social Science and Medicine. 1982; 16(18): 1627-1633.
In a study of the methodological problems involved in measuring the motivation to perform an altruistic act, voluntary blood donors in Toronto, Canada, were surveyed on a random basis by mailed questionnaire as well as by personal interview in order to determine why they began and why they may eventually terminate donating blood. The stated priorities of respondents in the two groups were virtually identical. The author concludes that the low response rates of postal surveys may not necessarily imply nonrespondent bias, and suggests that other aspects of technique bias be studied in place of the postal survey vs. personal interview question. (KIE abstract)
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