Answer: Variable-Ratio Schedule
Explanation:
Schedule of reinforcement is a rule stating which instances of behavior will be reinforced. In some cases, a behavior might be reinforced every time it occurs while at other times it might not be reinforced at all.
Reinforcement schedules take place in both in natural learning situations and training situations.
Some schedules are better suited to certain types of training situations. In some cases, training might call for one schedule and then switch to another once the desired behavior has been taught.
A VARIABLE-RATIO schedule is a schedule of reinforcement where a response is reinforced after an unpredictable number of responses. This schedule creates a steady, high rate of responding.
NOTE: variable-ratio schedule is unpredictable.
