What makes students effective mediators for their peers

The respect, loyalty. You just have to show that you can be a leader and guide someone.

The honest & respect that you show towards a person. depending on how you treat someone determines on how much of a leader you are

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)