When observers overvalue internal factors and underestimate external factors when explaining other behaviors, they are making a fundamental attribution error.
Situational attribution, also known as external attribution, refers to the idea that a person's actions or circumstances—such as their social or physical environment—are to blame for an occurrence or conduct.
Thus, while attempting to explain the behavior of others, observers have a propensity to overvalue internal factors while undervaluing exterior factors, which is known as the basic attribution fallacy.
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