Study invitations with envelopes made from recycled paper do not increase likelihood of active responses or study participation in the German National Cohort
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DOI: 10.1186/s13104-019-4510-y
Abstract: ObjectiveWe conducted a trial embedded within the German National Cohort comparing the responses to study invitations sent in recycled envelopes of grey color vs. envelopes of white color. We analyzed paradata for reactions to the… read more here.
Keywords: active responses; responses study; invitation; study participation ... See more keywords