Final answer:
The fundamental attribution error is the tendency to overemphasize dispositional explanations for behavior over situational explanations.
Step-by-step explanation:
The tendency to overemphasize dispositional explanations for behavior at the expense of situational explanations is known as the fundamental attribution error. This bias occurs when people attribute the behavior of others to internal factors (such as personality traits) rather than considering external factors (such as the situation or context). For example, if someone sees a person being rude to a waiter, they may assume that person is generally rude, without considering that they may be having a bad day or experiencing stress.