The invitation email was modified to make it more appealing and to highlight the benefits of participating to the survey. The behavioral interventions aimed at boosting participation and included :
- A personalized message to ensure recipients feel personally involved and valued, highlighting that their feedback matters to the company.
- A salient blue button leading to the questionnaire with a clear call to action "Access the Questionnaire" which facilitates the desired action and makes it "as easy as pressing a button".
