Final answer:
The supervisor is demonstrating the Fundamental Attribution Error by attributing poor performance to the employee's laziness without considering situational factors.
Step-by-step explanation:
The type of bias that occurs when a supervisor attributes an employee's poor performance to their laziness is referred to as the Fundamental Attribution Error. This bias involves the tendency to overemphasize personal characteristics and ignore situational factors in judging others' behavior. When a supervisor assumes an employee's poor performance is due to laziness rather than considering external factors such as lack of resources or personal issues, they are making this error. The Fundamental Attribution Error is powerful and can cause people to overlook obvious situational influences on behavior. However, research indicates that the tendency to make this error may vary between individualistic and collectivistic cultures.
Self-serving bias, on the other hand, involves making internal attributions for your successes and external attributions for failures. This is different from the Fundamental Attribution Error as it pertains to one's attributions about oneself rather than attributions about others.