Effects on retention of giving trial participants a thank you card following each study visit
SWAT: 119
Objective of this SWAT:
To evaluate the effects of giving trial participants a thank you card following each study visit, compared with not giving them a thank you card
Status:
In Progress
Resources:
Please click the links below to access the registered protocol or SWAT download bundle which includes: 1) SWAT Statistical Analysis Plan; 2) SWAT Intervention; 3) SWAT Initial Results Publication
