Can a simple letter or email get more parents to join a Stroke-Spotting program?

This study tests four different ways to encourage parents to register their children for FAST Heroes, a school-based program that teaches kids and families to recognize stroke symptoms and act fast. The approaches range from a printed letter sent home to an email combined with teacher reminders and an automated chatbot. Thirty-seven schools with no prior parent registrations are each assigned one of these methods, and the study measures how many parents sign up within eight weeks. The goal is to find practical, low-cost communication strategies that boost family engagement in health education.