Efficacy of Online Real-time CPR Training

The purpose of this study is to evaluate the effectiveness of a new online real-time quality measurement and feedback video-based CPR training program. The study participants will be allocated to three different CPR training programs: online real-time quality measurement and feedback video-based CPR training program, online real-time feedback video-based CPR training without quality measurement program, and conventional CPR training program. After CPR training, each participant will perform a 6 minute CPR simulation test. The investigators will compare the quality of chest compression between the three study groups. The investigators hypothesize that the new online real-time quality measurement and feedback video-based CPR training program is non-inferior to the preexisting conventional CPR training program and is superior to online real-time feedback video-based CPR training without quality measurement.