Operant Conditioning

Fixed Interval Graph

 

Schedules of Reinforcement

Fixed interval -- the first correct response after a set amount of time has passed is reinforced (i.e., a consequence is delivered). The time period required is always the same.

Notice that in the context of positive reinforcement, this schedule produces a scalloping effect during learning (a dramatic drop off of responding immediately after reinforcement.) Also notice the number of behaviors observed in a 30 minute time period.