Variable ratio: reinforcement based
on a number of actions taken. The
number varies, however it will
average to a certain ratio
Studies show that variable ratios result in
the most actions taken/maximum behavior
repitition compared to other strategies
Casino's use this model with slot machines. Reward is not
based on time, but on the number of times you play. It's
not on a fixed schedule, but a random, variable one. This
strategie results in you taking more actions (playing more),
which in the end makes the casino's the most money.