Evaluation of offering an incentive before or after completion of a 2-year follow-up postal questionnaire on the response rate in parents of preterm babies
SWAT: 69
Objective of this SWAT:
To establish whether offering an unconditional incentive in advance (with the first mailing of a questionnaire) or promising an incentive (in the first mailing) on completion of a questionnaire (conditional) to the parents of preterm babies improves the response rate
Status:
In Progress
Resources:
Please click the links below to access the registered protocol or SWAT download bundle which includes:
