SWAT #51.

Study name	Promoting group identity to improve questionnaire return rate
Methods	To assess the effect on questionnaire return rate of an intervention to promote group identity in trial participants.
Data
Comparisons	Intervention 1: active promotion of a group identity or membership using trial promotional material, such as wristbands, and participant‐friendly newsletters. Intervention 2: no promotional material or newsletters.
Outcomes	Primary: Questionnaire return rate Secondary: Measure of group identification
Starting date
Contact information	ashley.agus@nictu.hscni.net
Notes