Effect of envelope colour on response rates
SWAT: 29
Objective of this SWAT:
This SWAT investigates whether envelope colour affects response rates in three different stages of
a study:
(1) Invitation process
(2) Consenting process
(3) Return of first questionnaire
Status:
In Progress
Resources:
Please click the links below to access the registered protocol or SWAT download bundle which includes: 1) Initial SWAT results paper; 2)Previous SWAT replications x2
