Gathering Evidence on Best Practices for Lay Rescuer CPR Training

The goal of this prospective trial is to compare CPR skill and attitudes in lay rescuers. The main question\[s\] it aims to answer are:

* What is the optimal training timing, duration, and frequency for lay rescuers that leads to CPR skill retention? * What is the impact of CPR manikin type (high-fidelity, inflatable, nontraditional objects) on skill retention? * How do specific features of training modality -- such as contextualization, gamification, and emotional engagement -- impact skill proficiency, knowledge retention, and attitudes about CPR?

Participants will

* Answer pre-training questionnaires * Participate in CPR training * Participate in CPR skills testing * Answer post-training questionnaires

Researchers will compare different methods of training, different frequencies of training, and different manikin types.