MCAT

Self-Serving Bias & Fundamental Attribution Error - MCAT Psychology

Written by medschoolcoach | Jun 25, 2025 9:33:35 AM

 

 

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Self-Serving Bias & Fundamental Attribution Error for the MCAT


Self-serving bias and fundamental attribution error are two prominent cognitive biases that shed light on the way we perceive and interpret the behavior of ourselves and others. This post covers what you need to know about both cognitive biases for the MCAT exam.

Self-Serving Bias


Self-serving bias
describes how individuals alter the perception of causality to preserve self-esteem. In other words, when something happens to you, you explain it in a way that boosts your self-esteem. You’ll take credit for something good that happens to you, and you’ll pass the blame off on someone to something else when something bad happens. Relating this to attribution, when something good happens to you, you’ll probably attribute your success to internal factors, such as your own good characteristics. When something bad happens to you, you’ll probably say that it was due to external factors beyond your control, and so whatever bad thing happened wasn’t your fault. For example, consider a teacher who administers an exam to their students. If the class does really well on the exam, the teacher will believe that it was due to their high-quality teaching. If the students do poorly on the exam, the teacher might claim that the students were too lazy to study the material properly.

Fundamental Attribution Error


The fundamental attribution error describes how we we attribute negative behaviors of others to internal factors and positive behaviors to external factors. For example, if someone is late to a work meeting, we might jump to assume that it’s because they’re an inconsiderate person. Notice how we apply the opposite standards of the self-serving bias when we judge others.