Answer:
Fixed ratio schedule
Step-by-step explanation:
Reinforcement can be explained as an outcome that precedes a response that is likely to increase the chances of that response repeating in future.
Partial reinforcement only reinforces the response only parts of the time.
Fixed ratio schedule is a type of partial reinforcement that occurs when a response is reinforced only after a particular number of responses.
In the question, the boss rewards the behavior of his staff only after the correctly follows the procedure six times.