EDRP stands for, essence, dynamic and raw power. These three factors are key elements to bring out your message to your audience.
Essence: The core of your message, it measures the integrity towards your message and the way you wish to speak to your audience.
Dynamics: The flow of your message, it takes into account the fluidity and quality of your message on a more technical side.
Raw Power: The potency of your message, it reflects the impact you make on your audience.