As an incentive for participation, participants were invited to enter a draw to win one of two tablet computers.
In addition, there was no incentive for participation and the participants were not aware of the aim of the study.
Study participants received no financial incentive for participation.
Participants received a cash incentive for participation in the study, which was distributed at the end of the study.
Twenty book vouchers were provided as an incentive for participation; the winners were chosen among all participants by chance.
To provide an incentive for participation, a 50€ prize was drawn among the participants.
Participants received no payment or other incentive for participation and a declaration of no objection for this study was given by the medical ethical committee of the Erasmus University Medical Center, Rotterdam.
CER credits could provide an incentive for participation in climate change mitigation and cover the costs that African participants will encounter when engaging in carbon sequestration [2].
All participants received a gift (RM B¥5) as a monetary incentive for participation.
CER credits could provide an incentive for participation in climate change mitigation and cover the costs that African participants will encounter when engaging in carbon sequestration [ 2].
At the Study Center Hannover, participants in the Pretest 2 phase were offered a €20 cash incentive for participation.
