1471-2288-7-50-2.jpg (21.72 kB)

Mean differences between the two survey modes SAQ vs

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posted on 2011-12-30, 19:38 authored by Margitta Lungenhausen, Stefan Lange, Christoph Maier, Claudia Schaub, Hans J Trampisch, Heinz G Endres

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Taken from "Randomised controlled comparison of the Health Survey Short Form (SF-12) and the Graded Chronic Pain Scale (GCPS) in telephone interviews versus self-administered questionnaires. Are the results equivalent?"

http://www.biomedcentral.com/1471-2288/7/50

BMC Medical Research Methodology 2007;7():50-50.

Published online 22 Nov 2007

PMCID:PMC2216025.

TI, by survey-mode sequence.

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differences survey modes saq

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