Unconditional or conditional incentives for initial and followup postal questionnaires in a clinical trial
SWAT: 96
Objective of this SWAT:
To evaluate the effect of unconditional versus conditional gift voucher incentives on response rates to initial and repeat mailed questionnaires, reminders sent and questionnaire completeness
Status:
In Progress
Resources:
Please click the links below to access the registered protocol or SWAT download bundle which includes: 1) SWAT Intial Results Publication; 2)SWAT Replication publication
