Answer:
Fixed-ratio; variable-ratio
Step-by-step explanation:
Paul’s telephoning is reinforced on a fixed-ratio schedule, whereas Michael’s is reinforced on a variable-ratio schedule.
A fixed ratio reinforcement schedule: They are a set number of responses that must occur before the behavior is rewarded. This means the number of responses to be exhibited by an individual in order to be rewarded is fixed.
Fixed-ratios are better used to optimize the quantity of output.
Variable ratio reinforcement schedule: The number of responses needed for a reward varies. This implies that the number of responses to be rewarded varies according to requirement. It is a partial reinforcement.